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Medina (knee) started Triple-A Las Vegas' loss to Tacoma on Wednesday, allowing five earned runs on four hits, a walk, a wild pitch and a hit batsman over 2.1 innings. He struck out one.

Advice: Medina moved up from the Athletics' rookie-level AZL club after opening his rehab assignment there May 15, and as his line indicates, the results were far from encouraging. Medina had a similarly difficult time in his first rehab start against a much lower caliber of competition, so it's clear he has plenty of kinks to work out before a move to the big-league club can be considered. Given Wednesday's results, it remains to be seen if Medina will be shifted to a lower-level affiliate for his next rehab appearance in an effort to allow him to build some confidence and momentum. Rotowire.com 3 minutes ago

Braves recalled RHP AJ Smith-Shawver from Triple-A Gwinnett on Thursday.

Advice: This move was rumored yesterday and is now official. With Bryce Elder disappointing in his five starts, the 21-year-old Smith-Shawver will get a chance to stake his claim to a spot in the rotation. Daysbel Hernández was optioned to Triple-A Gwinnett in a corresponding move. Smith-Shawver has improved his velocity and overall stuff+ grades this year in the minors, but his command has been an issue, leading to a decent amount of hard contact. In May, he has a 5.40 ERA and 1.47 WHIP with 19 strikeouts and nine walks in 18 1/3 innings. The potential is clearly there, but he needs to show more consistency before we feel confident about his ability to stick in the rotation this year. Rotoworld 26 minutes ago

Williamson (shoulder) struck out four and allowed one earned run on five hits and one walk over 3.2 innings Sunday in his rehab start with Triple-A Louisville.

Advice: Sunday's outing was Williamson's first with Louisville but the second overall of his rehab assignment, which he began with High-A Dayton on May 14. Williamson, who has been on the shelf all season with a left shoulder strain, is eligible for activation next week, but he'll likely need at least another rehab start or two to get fully stretched out for a traditional starting role. With Nick Lodolo (groin) tentatively in line to return from the 15-day injured list Monday to bring the Cincinnati rotation back to full strength, Williamson may have to settle for a bullpen role once activated, if the Reds don't elect to option him to Louisville to remain on a starter's schedule. Rotowire.com Today, 8:04 am

Gray isn't expected to make his next start after he was diagnosed Thursday with a mild right groin strain, Evan Grant of The Dallas Morning News reports.

Advice: Gray was removed from his start in Tuesday's 5-2 loss to the Phillies because of the injury. It's not clear yet whether Gray will require a stint on the 15-day injured list, but it would seem to be a distinct possibility. He had been slated to start Sunday in Minnesota, but the Rangers might now need Jose Urena to take the ball that day. Rotowire.com Today, 7:59 am

Baz (elbow) allowed one earned run on three hits and three walks while striking out four across four innings during a rehab start with Triple-A Durham on Wednesday.

Advice: This was Baz's best rehab appearance since starting the assignment May 4. He's still fighting his control, as he has walked 11 batters across 12 innings, though that shouldn't come as a significant surprise given his lengthy layoff since last pitching in a meaningful game. The Rays will likely want him to make at least one more start in the minors, but he could rejoin the big-league rotation in early June. Rotowire.com Today, 7:10 am