Chris Nelson, ss, Rockies: Nelson hasn’t played for Double-A Tulsa since May 22, going on the disabled list with a sprained right wrist, according to BA correspondent Jack Etkin. Nelson injured his wrist sliding into second base on May 8. He returned after sitting out a few games, but has been unable to play as of late. Nelson had been playing well, batting .280/.355/.477 in 29 games in the Texas League. He also missed time last year with a broken hamate bone, which limited him to 81 games in 2008.

Jason Heyward, rf, Braves: Heyward hasn’t played since May 26 with what’s being described as "side pain." The Myrtle Beach Sun News reported the injury in early May as a hip flexory injury, and that’s been about the only thing that has been able to slow down Heyward thus far. Through 37 games with high Class A Myrtle Beach, the 19-year-old Heyward has hit .295/.373/.561 with 16 walks and 24 strikeouts.

Jake McGee, lhp, Rays: McGee hasn’t been on the field yet this year, and now it looks like he’ll be back a little later than originally expected. He had Tommy John surgery last July and was expected to finish his rehab program early this month, though his timetable has been pushed back roughly a month after he experienced some forearm tightness, according to the Montgomery Adviser. McGee’s new rehab program is now scheduled to be completed on June 26. When healthy, McGee had one of the best fastballs from the left side in pro ball, though at this point he might be a better fit in the bullpen than in the starting rotation.

Max Ramirez, c, Rangers: Ramirez went to the DL with right wrist soreness. After a productive 2008 season, Ramirez has come unglued in Triple-A, particularly with his approach. In 37 games with Triple-A Oklahoma City, the 24-year-old Ramirez is hitting .238/.277/.329. His swing tends to get long, which has led to 51 strikeouts this season.

Justin Smoak, 1b, Rangers: A strained left oblique has landed Smoak on the DL, which won’t come to the dismay of Double-A Texas League pitchers. Smoak, the Rangers’ first-rounder last year from South Carolina, has hit .325/.444/.503 in 41 games with 32 walks and 30 strikeouts. Smoak last played on May 28, the only game he has played in since May 23.

Quick Hits: The Mets placed high Class A St. Lucie shortstop Reese Havens on the disabled list retroactive to May 31 . . . The Dodgers put 20-year-old Austin Gallagher on the DL. He was solid last year in the high Class A California League, but he went backwards to low Class A Great Lakes this year, where he’s hit .259/.326/.349 in 43 games . . . It took Jemile Weeks a long time to get back on the field, but the Athletics’ 2008 first-round pick made his 2009 debut with high Class A Stockton after opening the year in extended spring training nursing his hip injury. The 22-year-old second baseman is off to a nice start: 10-for-29 with two homers and three walks . . .Tigers Double-A third baseman Michael Hollimon returned to the lineup on May 27. Hollimon had been out since April 14 with a bruised left knee  . . . Indians center fielder Tim Fedroff returned to high Class A Kinston’s lineup on May 25. A hamstring injury had sidelined him since May 9 . . . Rangers low Class A righthander Wilfredo Boscan returned to Hickory from the DL on May 27. The 19-year-old Venezuelan has been out with a strained muscle in his side.