Top prospect Erik Johnson to get an MRI

CHICAGO -- Injuries are not just limited to the big club, as general manager Rick Hahn confirmed that the Chicago White Sox's top pitching prospect Erik Johnson is scheduled to undergo an MRI on Thursday.

Johnson, who was recently promoted to Triple-A Charlotte, has a groin injury, and the White Sox are still unsure of the severity.

In 14 starts at Double-A Birmingham earlier this season, Johnson was 8-2 with a 2.23 ERA. In three starts at Charlotte since his promotion, he was 1-0 with a 2.25 ERA.

The 23-year-old right-hander impressed the White Sox in spring training and is a bright spot in a farm system that is generally considered to be in the lower third of all major league teams.

As for health issues in Chicago, Jake Peavy was set to throw a second bullpen session Friday in Florida before the White Sox open a three-game series against the Tampa Bay Rays. Manager Robin Ventura said on Thursday that he still doesn’t expect Peavy to return before the All-Star break.

Paul Konerko, who is struggling with a lower back strain will not accompany the team to Florida. He will rejoin the club when it returns for Monday night’s makeup game against the Cubs at U.S. Cellular Field and then will go with the club to Detroit.

Right-hander Jesse Crain, who has a shoulder strain, is also not expected to accompany the club to Florida.