Perez (elbow) is aiming to begin a rehab assignment Aug. 2, Scott Merkin of MLB.com reports.

Out since mid-April with a left flexor strain, Perez has been throwing off a mound and will progress to facing hitters at the end of this week. Assuming his rehab continues to move along without hiccups, he will be cleared for rehab games in early August and likely return before the end of that month if all goes well.

Rays manager Kevin Cash said that McClanahan (triceps) "felt OK, nothing great" during a 10-pitch bullpen session Monday, Marc Topkin of the Tampa Bay Times reports.

The bullpen session came after McClanahan served up two home runs and recorded only two outs in his most recent rehab start with Triple-A Durham on Friday. The southpaw is tentatively scheduled to make the fourth start of his rehab assignment Thursday, but Cash indicated that the Rays haven't yet locked McClanahan in to make an appearance that day. McClanahan has been sidelined all season with a nerve issue in his pitching arm, and he has yet to cover more than 1.2 innings in any of his rehab outings thus far.

Red Sox manager Alex Cora said Monday that Houck is shut down indefinitely following a recurrence of right flexor soreness, Tim Healey of The Boston Globe reports.

Cora does not anticipate Houck requiring surgery, but he said the pitcher will "go to step one" once he resumes throwing. It puts Houck's return this season at risk. The right-hander has been sidelined since mid-May.

Rodriguez (lat) is undergoing imaging on his right elbow after feeling discomfort earlier this month, Matt Weyrich of The Baltimore Sun reports.

Rodriguez has been sidelined all season, first with an elbow problem and then with a right lat issue. It now appears that the elbow is the bigger concern, although more should be known once the test results are in. Rodriguez will remain shut down until late this week, at minimum. He has not pitched in a game setting since spring training, so it will take him a long time to be major-league ready even if he progresses without more setbacks from here on out.

The Tigers plan to call up Melton from Triple-A Toledo to start Wednesday's game against the Pirates at PNC Park, Chris McCosky of The Detroit News reports.

The upcoming move to the big leagues will represent the third stop of the season for the 25-year-old righty, who has produced a 2.99 ERA, 1.23 WHIP and 101:20 K:BB over 75.1 innings between Toledo and Double-A Erie. Melton won't be guaranteed any starts beyond Wednesday, but a strong showing against a reeling Pirates squad could might be enough for him to stick around as the fifth member of the rotation over Keider Montero and Sawyer Gipson-Long (neck).

The Royals are expected to call Hill up from Triple-A Omaha, and he'll likely pitch Tuesday against the Cubs, Robert Murray of FanSided.com reports.

The 45-year-old lefty will become the oldest active player in the majors once he joins the Royals for what will be his 21st season in the big leagues with his 14th different team. The Royals haven't clarified their plans for Hill, but he'll likely start or pitch in bulk relief while essentially operating as the fifth member of their rotation until either of Michael Lorenzen (oblique) or Cole Ragans (shoulder) return from the injured list. After joining the organization on a minor-league deal May 14, Hill reported to Triple-A at the beginning of June and turned in a 5.36 ERA, 1.62 WHIP and 48:25 K:BB in 42 innings with Omaha. He had pitched more effectively over his last two outings, however, striking out 11 while allowing one earned run in seven innings.

Fried (finger) is in line to start Wednesday's game in Toronto, Bryan Hoch of MLB.com reports.

Fried developed a blister on his left index finger during his final start before the All-Star break back on July 12 versus the Cubs, but the extended break has seemingly allowed him to move past the issue. After he resumed playing catch shortly after suffering the finger issue, Fried cleared up any lingering concern about his health by tossing a bullpen session in Atlanta over the weekend. The veteran southpaw heads into his start Wednesday having logged an 11-3 record with a 2.43 ERA and 1.01 WHIP in 122 innings over his first 20 outings of the season.

Lucas (undisclosed) struck out three while giving up one hit and one walk over three scoreless innings Saturday in Triple-A Buffalo's 3-2 win over Omaha after being reinstated from the 7-day injured list earlier in the day.

Lucas had started in six of his previous seven appearances with Buffalo prior to being shelved with the unspecified injury, but he was used out of the bullpen in his return to action Saturday, working in tandem with CJ Van Eyk, who covered the first 3.1 innings. Before his recent absence due to the injury, Lucas had made five appearances (four starts) for Toronto earlier this season, logging a 5.82 ERA and 1.43 WHIP in 21.2 innings. Unless additional injuries strike the Toronto rotation, Lucas likely won't be in line for a starting assignment with the big club in the near future.

Ober (hip) struck out three over four scoreless frames in his first rehab start with Triple-A St. Paul on Friday.

Ober got his pitch count up to 50 in the outing, with 43 of those offerings going for strikes. Per Dan Hayes of The Athletic, Ober averaged 90.4 mph with his four-seamer, which is a bit below his season average. While it's possible Ober rejoins the Twins' rotation this week, the club might elect to give him one more rehab start to continue building up his pitch count. Ober has been out for all of July with a left hip impingement.

Manoah (elbow) gave up one run on three hits over two innings for Single-A Dunedin on Sunday. He struck out two without walking a batter.

The right-hander tossed 28 pitches (16 strikes) in his second rehab outing as he enters the final stretch of his recovery from an internal brace procedure performed last June. Per Mitch Bannon of The Athletic, Manoah will need at least three more rehab starts before the Blue Jays will consider activating him from the 60-day IL, but at the moment there isn't a spot for him in the big-league rotation, and the team may well have added further depth at the trade deadline before he's ready to return.