The Diamondbacks optioned Walston to Triple-A Reno on Thursday.
Since rejoining the D-backs' bullpen Sept. 15, Walston has surrendered eight runs (five earned) over just 5.2 innings while striking out seven batters and walking one. He and Yilber Diaz will end up as Arizona's roster casualties following the activation of Ryne Nelson (shoulder) and promotion of Alek Thomas, and the 23-year-old Walston likely won't make it back to the majors during the final series of the season this weekend.
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Diamondbacks' Blake Walston: Promoted Sunday
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The Diamondbacks recalled Walston from Triple-A Reno on Sunday.
The left-hander was activated from the injured list in mid-August after missing two months due to an elbow issue, but he was immediately sent to Triple-A. Walston has started in two of his three appearances with Arizona this season, but he's likely to work in a long-relief role this time around.
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Diamondbacks' Blake Walston: Comes off IL, optioned to Reno
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The Diamondbacks reinstated Walston (elbow) from the 15-day injured list Monday and optioned him to Triple-A Reno.
With Eduardo Rodriguez and Merrill Kelly both recently returning from the IL, the Diamondbacks don't have an open spot on the rotation for Walston. For now, Walston will head down to Triple-A, but the 23-year-old southpaw should eventually make his way back to the big club, possibly as a multi-inning option out of the bullpen if the rotation isn't impacted by injury. Prior to landing on the IL on June 6 due to left elbow inflammation, Walston registered a 2.84 ERA and 1.42 WHIP across 12.2 innings in three major-league appearances (two starts).
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Diamondbacks' Blake Walston: Makes first rehab start
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Walston (elbow) struck out five and allowed two hits and no walks over 3.2 innings in a rehab start for Triple-A Reno on Sunday.
According to Jesse Friedman of GoPHNX.com, manager Torey Lovullo said July 26 that the Diamondbacks were undecided on what Walston's role might look like upon the left-hander's return from the 15-day injured list, but Walston's usage Sunday implies that he'll be built back up as a starter. With Eduardo Rodriguez and Merrill Kelly both beating him back from the IL, the Diamondbacks don't have a rotation spot available for Walston at the moment, though the complexion of Arizona's pitching staff could change by the time Walston is ready for activation. Walston posted a 2.84 ERA and 11:9 K:BB across 12.2 innings in three outings (two starts) for Arizona before landing on the IL on June 6 with a left elbow strain.
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Diamondbacks' Blake Walston: Faces hitters
Rotowire
Walston (elbow) threw live batting practice Friday, Jesse Friedman of GoPHNX.com reports.
Walston touched 94 mph during the session, an encouraging sign considering he hovered between 91 and 92 mph during his three appearances this season. The 23-year-old southpaw is expected to be activated from the injured list sometime in August, but manager Torey Lovullo indicated Friday that the team was still determining whether he'll be an option for the big-league rotation down the stretch.
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Diamondbacks' Blake Walston: Trending toward August return
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Walston (elbow) isn't expected to return from the 15-day injured list until sometime in August, Theo Mackie of The Arizona Republic reports.
After turning in a 2.84 ERA, 1.42 WHIP and 11:9 K:BB in 12.2 innings through his first three big-league outings (two starts), Walston was placed on the 15-day injured list June 6. His injury was initially classified as left elbow inflammation, but the Diamondbacks have since listed him with a left elbow strain, according to MLB.com. While Walston has resumed throwing off flat ground from 60 to 100 feet, the Diamondbacks haven't yet indicated that he's been cleared for bullpen sessions, so he still looks to be several weeks away from being stretched back out for a starter's workload. All of Jordan Montgomery (knee), Eduardo Rodriguez (lat) and Merrill Kelly (shoulder) are further along in their throwing progressions and appear poised to beat Walston back from the injured list, so the 22-year-old southpaw will most likely be optioned to Triple-A Reno once he's activated.
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Diamondbacks' Blake Walston: Heads to 15-day IL
Rotowire
Walston was placed on the 15-day injured list Thursday due to left elbow inflammation, Alex Weiner of ArizonaSports.com reports.
Walston was called up to make his first MLB start May 27 and made an additional start Tuesday. He didn't factor in the decision in either start, but he gave up just two earned runs in nine innings. He seemed likely to stick in the rotation prior to the injury. The Diamondbacks selected Humberto Castellanos from Triple-A Reno in a corresponding move.
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Diamondbacks' Blake Walston: Allows two runs Tuesday
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Walston did not factor into the decision in Tuesday's win over the Giants, allowing two runs on two hits and four walks while striking out two over 4.1 innings.
Walston didn't have his best stuff, evidenced by his four walks, but was able to keep the Giants at bay after the Diamondbacks got out to a 3-0 lead. Walston had a full count on six of the first nine hitters he faced and needed 50 pitches to get through two scoreless frames. The Giants eventually got a run across in the fourth and another in the fifth after Kevin Ginkel was unable to strand one of the two runners he inherited. Walston now owns a 2.84 ERA, 1.42 WHIP and 11:9 K:BB over 12.2 innings. The 23-year-old figures to get at least another look in the rotation while Zac Gallen (hamstring) makes his way back from injury. Walston lines up to face the Padres on the road this weekend.
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Diamondbacks' Blake Walston: Set to start Tuesday
Rotowire
Walston is scheduled to start Tuesday's game against the Giants at Chase Field.
After he was called up from Triple-A Reno on May 26, Walston made his first big-league start later that day against the Marlins, striking out four over 4.2 scoreless innings in a no-decision. Arizona had previously confirmed Walston for a start against the Mets this past weekend, but he was ultimately pushed back in the pitching schedule after the Diamondbacks elected to call up Slade Cecconi from Reno to slot into the rotation following Zac Gallen's (hamstring) placement on the 15-day injured list. Until one of Gallen, Merrill Kelly (shoulder) or Eduardo Rodriguez (shoulder) returns from the IL, the Diamondbacks should have back-end rotation spots available for both Walston and Cecconi.
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Diamondbacks' Blake Walston: Rewarded with another start
Rotowire
Walston is slated to start Saturday's game against the Mets at Citi Field.
Walston will stick around as the fifth member of Arizona's rotation after he blanked the Marlins over 4.2 innings while striking out four in his first MLB start Sunday. Though the 23-year-old southpaw came through with a passable showing in his first start, fantasy managers should tread carefully with Walston, who has struggled to keep his walks in check at nearly every rung of the minors. Though he issued just one free pass against Miami, Walston walked four batters in his MLB debut May 1, when he tossed 3.2 innings of long relief against the Dodgers.
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Diamondbacks' Blake Walston: Impresses in starting role
Rotowire
Walston did not factor into the decision in Sunday's loss to the Marlins. He tossed 4.2 scoreless innings while allowing just four hits and a walk and striking out four.
Walston kept the Marlins' bats at bay and looked sharp in his first MLB start. He struck out a pair in the opening frame and was able to shut down the minimal scoring opportunities against him. Walston also pounded the zone, throwing 46 of his 65 pitches for strikes while garnering eight whiffs on the afternoon. Manager Torey Lovullo has not yet indicated whether Walston will get another start or not. If he does, the 23-year-old lefty would line up to face the Mets in New York this weekend. He now has nine strikeouts over his first 8.1 big league innings.
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Diamondbacks' Blake Walston: Called up for first MLB start
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The Diamondbacks recalled Walston from Triple-A Reno ahead of his scheduled start Sunday against the Marlins in Arizona.
Walston will be making his first MLB start, joining the rotation as a replacement for Slade Cecconi, who was optioned to Reno on Wednesday. A 22-year-old lefty, Walston made his major-league debut earlier this month in long relief before heading back to Reno, with whom he's produced a 4.54 ERA, 1.68 WHIP and 35:20 K:BB across 35.2 innings this season.
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Diamondbacks' Blake Walston: Confirmed for start Sunday
Rotowire
Diamondbacks manager Torey Lovullo confirmed that Walston will be called up from Triple-A Reno to start Sunday's game against the Marlins, Alex Weiner of ArizonaSports.com reports.
He'll step into the rotation spot vacated by Slade Cecconi, who was optioned to Reno earlier in the week. Walston will be making his first MLB start and second MLB appearance Sunday after he was charged with two earned runs on three hits and four walks while striking out five over 3.2 innings in a long-relief appearance May 1 against the Dodgers. The 22-year-old lefty has been a member of the rotation for Reno for much of the season, logging a 4.54 ERA, 1.68 WHIP and 35:20 K:BB across 35.2 innings in the hitter-friendly Pacific Coast League.
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Diamondbacks' Blake Walston: Likely to start Sunday
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Walston has joined the Diamondbacks' taxi squad and is expected to be called up from Triple-A Reno to start Sunday's game against the Marlins, Alex Weiner of ArizonaSports.com reports.
The Diamondbacks haven't officially announced their pitching plans for Sunday, but Walston's presence in the clubhouse suggests that he'll be the choice to either start or work as a bulk reliever in the series finale versus Miami. The 22-year-old southpaw allowed two earned runs in 3.2 innings during his MLB debut May 1 against the Dodgers, and he has since posted a 4.20 ERA and 1.40 WHIP across three appearances upon being sent back down to Triple-A.
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Diamondbacks' Blake Walston: Back down to Triple-A
Rotowire
Walston was optioned to Triple-A Reno on Thursday.
It was a brief stint for Walston, who was recalled by the Diamondbacks on Wednesday. He threw for 3.2 innings in Wednesday's loss to the Dodgers, allowing two runs on three hits and four walks while striking out five. The move corresponds with Arizona acquiring right-hander Matt Bowman from the Twins on Thursday, while Merrill Kelly (shoulder) was transferred to the 60-day IL.
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Diamondbacks' Blake Walston: Needed for length in loss
Rotowire
Walston allowed two runs on three hits and four walks while striking out five over 3.2 innings in Wednesday's 8-0 loss to the Dodgers.
Walston, a starter at Triple-A Reno who made his major-league debut Wednesday, was recalled earlier in the day following Tuesday's surprise bullpen effort that left the club in need of a fresh arm. His length was needed immediately, as starter Jordan Montgomery was ambushed by the Dodgers early. Walston navigated around a walk and two hits over three scoreless frames before running into trouble in the seventh inning. That's when the left-hander's shaky command -- three walks including one with the bases loaded -- caught up to him.
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Diamondbacks' Blake Walston: Recalled to majors
Rotowire
Walston was recalled from Triple-A Reno on Wednesday.
Walston didn't make the cut for Arizona's Opening Day roster, but he will get a chance to play with the team after five years in the minors. The lefty pitcher has logged a 4.79 ERA and 1.88 WHIP over 20.2 innings in five games played with the Reno Aces so far this year. The 22-year-old will be making his major-league debut when he gets into a game and could work in long relief since he's pitched out of Reno's rotation.
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Diamondbacks' Blake Walston: Sent to Triple-A
Rotowire
The Diamondbacks optioned Walston to Triple-A Reno on Monday.
Walston was dispatched to minor-league camp along with right-handers Slade Cecconi and Corbin Martin after all three pitchers fell short in their bids for spots on Arizona's Opening Day roster. Unlike Cecconi and Martin, Walston has yet to make his MLB debut, but the Diamondbacks saw enough potential in him to protect him from the Rule 5 Draft this winter and add him to their 40-man roster. The 22-year-old southpaw will be returning to Reno, where he posted a 4.52 ERA and 1.57 WHIP over 149.1 innings while pitching mostly in hitter-friendly venues in the Pacific Coast League.
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Diamondbacks' Blake Walston: Protected from Rule 5 Draft
Rotowire
The Diamondbacks added Walston to their 40-man roster Tuesday.
Walston spent all of 2023 with Triple-A Reno, posting a 4.52 ERA and 1.57 WHIP in 149.1 innings. Teams won't be able to pluck Walston away from Arizona in the upcoming Rule 5 Draft, but given his command issues and low strikeout totals, the 22-year-old southpaw has work to do before he can be considered for the major-league roster.
