"He was playing catch (Monday), and he felt something in his ribcage," manager Terry Francona told reporters Tuesday (via Danny Knobler of CBSSports.com). "We're hoping he can throw a side (Wednesday) and pitch Saturday, but we have contingency plans. The hope is he's fine, but we want to make sure."
Kazmir was placed on the major-league roster earlier in the day while reliever Nick Hagadone was optioned to the minors. The move was made in case Kazmir must be placed on the DL -- meaning the Indians could backdate a potential DL stint or bring up a starter from the minors to take Kazmir's scheduled spot in the rotation on Saturday.
Kazmir enters the season with a chance to become a feel-good story. He's only 29 but hasn't pitched in the majors since April 3, 2011. He was 3-6 with a 5.34 ERA with the Sugar Land Skeeters (no MLB affiliation) last season but won a spot in the Indians' rotation this spring.
At one point, Kazmir looked like one of the most promising young pitchers in baseball. He was a two-time All-Star and one-time AL strikeout champion before he turned 25 but completely fell apart in the 2010 and 2011 seasons.