The Padres reinstated Darvish (elbow) from the 15-day injured list to start Wednesday's game against the Tigers.

The veteran right-hander is poised to make his first start for the Padres since May 29 after recovering from elbow inflammation. Darvish built up to 66 pitches in a simulated game Friday but is returning without a minor-league rehab assignment, so he's likely to have some workload restrictions in his first game action in over three months.

The Cubs placed Steele on the 15-day injured list Wednesday with left elbow tendinitis, Taylor McGregor of Marquee Sports Network reports.

Steele had to be scratched from his scheduled start Tuesday due to inflammation in his elbow, and he'll now officially sit out for another few turns through the rotation following his latest diagnosis. Kyle Hendricks started in Steele's place against the Pirates and figures to serve as Chicago's fifth starter while the left-hander is sidelined.

Blackburn (hand) will rejoin the Mets' rotation early next week in Toronto, Anthony DiComo of MLB.com reports.

The exact date of his return is uncertain, but Blackburn has been cleared to make his next start in the majors after tossing 6.2 innings of one-run ball in a rehab outing with Triple-A Syracuse on Tuesday. He's been out since late August with a right hand contusion.

Senga (calf) threw a 25-pitch bullpen session Wednesday with increased intensity, Anthony DiComo of MLB.com reports.

Senga implied recently that he's past his left calf strain at this point and is now focused on getting his arm back in shape. It could be too late in the season to build him back up as a starter, but Senga has expressed a willingness to pitch in relief, if that's where the Mets would like to use him. It's unclear when he might be ready for a rehab assignment.

Yamamoto (triceps) tossed two innings in his rehab start for Triple-A Oklahoma City on Tuesday, allowing two runs on two hits and two walks while striking out three batters.

Yamamoto was slated to go three innings in the outing, but his pitch count got up to 53 after two frames, so he didn't return for the third. The elevated pitch count was largely due to a 17-pitch at-bat that ended in a walk against MLB veteran Omar Narvaez. While Yamamoto's final stat line was far from impressive, he did throw 36 of his 53 pitches for strikes and sat at 95-to-96 miles per hour on his fastball, so the overall takeaway was mostly positive. It's not yet clear if the right-hander will be asked to make an additional rehab start or if his next game action will be with the big-league club, though the former is probably more likely given the Dodgers' general preference to be cautious with injuries to their starting pitchers.

Robberse (elbow) was activated from Triple-A Memphis' 7-day injured list Wednesday.

Robberse made three rehab starts at Single-A Palm Beach, allowing two runs (one earned) on nine hits and a walk while striking out four over six innings. The Cardinals will likely stay cautious with the right-hander to close out the campaign, but he should be able to get at least two or three more appearances with Memphis before the end of the season.

Garrett (forearm) is scheduled to make a rehab start with Single-A Jupiter on Thursday, Kevin Barral of FishonFirst.com reports.

The left-hander progressed to throwing live batting practice over the weekend and has been deemed ready for game action after a bullpen session Tuesday. Garrett is expected to throw about three innings and/or 50 pitches Thursday in the first of what's likely to be a couple rehab starts. He's been on the shelf since mid-June due to a forearm strain.

The Phillies optioned Phillips to Triple-A Lehigh Valley on Wednesday.

Phillips' return to the Phillies' rotation will come to an end after just one start, with the right-hander heading back to the minors after he recorded just two outs while allowing six earned runs on eight hits in Tuesday's 10-9 win over the Blue Jays. The Phillies called up right-hander Nick Nelson from Triple-A to replace Phillips on the active roster and provide the bullpen with a fresh arm in the short term. The team will need to settle on a new fifth starter Sunday in Miami, with Taijuan Walker and Kolby Allard perhaps representing the top candidates to fill the spot vacated by Phillips.

German is slated to start Wednesday's game against the Cubs at Wrigley Field, Andrew Destin of the Pittsburgh Post-Gazette reports.

At least temporarily, the Pirates will expand the rotation to a six men, with the addition of German building in an additional day of rest between starts for rookies Paul Skenes and Jared Jones. German tossed six scoreless innings against the Rangers in his lone other start for the Pirates on Aug. 21, but he worked in long relief in his last two appearances, covering 5.2 innings while yielding 10 runs on 11 hits and five walks.

Senzatela (elbow) allowed two hits and struck out three with no walks across four scoreless innings in a rehab start with Double-A Hartford on Tuesday, MLB.com reports.

This outing marked Senzatela's fourth start during his rehab stint and was his most effective. He still built up to only 52 pitches, so he'll likely need at least one more start in the minors before being activated.