The Cleveland Indians placed star pitcher Corey Kluber on the injured list with a broken right arm that will sideline him indefinitely.

Kluber, 33, sustained a non-displaced fracture of his ulna bone when he was hit by a 102 mph line drive off the bat of Miami's Brian Anderson on Wednesday night. He underwent further tests Thursday at the Cleveland Clinic, and the results confirmed the diagnosis.

The Indians said Kluber does not need surgery for now. He will be re-examined in three to four weeks.

The loss of Kluber is a major blow to the Indians, who trail Minnesota in the American League Central by three games and haven't been hitting -- batting an AL-low .215 with just 111 runs this season. Cleveland is missing two starters from one of baseball's best rotations as Mike Clevinger remains out with a strained back muscle.

Kluber, a two-time Cy Young Award winner, was not pitching up to his standards early this season, but the right-hander is still the club's ace and a leader.

The Indians are likely to go to a five-man rotation in May with Jefry Rodriguez getting starts. He has made two starts while filling in for Clevinger and is scheduled to start Tuesday against the Chicago White Sox.

Kluber would have started Monday, and manager Terry Francona will either juggle his rotation or reach down to Triple-A Columbus and bring up either Adam Plutko or Cody Anderson.

Cleveland recalled reliever Jon Edwards on Friday to take Kluber's spot on the roster.

The Associated Press contributed to this report.