Indians president Chris Antonetti said on MLB Network Radio on Sirius XM on Tuesday that Corey Kluber (groin) will undergo an MRI.
Indians manager Terry Francona downplayed Corey Kluber's groin injury after Monday's game.
Corey Kluber exited Monday's start against the Tigers with right groin tightness.
Corey Kluber was pulled from Monday's start against the Tigers after four innings.
Corey Kluber gave up two runs over 6 1/3 innings to lead the Indians to a 4-3 victory over the Royals on Wednesday.
Corey Kluber picked up his 17th victory of the season on Friday, limiting the Tigers to four runs on five hits over his seven innings of work.
Corey Kluber struck out 10 batters while allowing just one (unearned) run over seven innings Sunday in the Indians' 7-1 victory over the Twins.
Corey Kluber struck out nine but was charged with four runs over seven frames in Tuesday's loss to the Astros.
Corey Kluber struck out 11 batters while yielding three runs in eight innings to lead the Indians to an 8-4 win over the Twins on Wednesday.
Corey Kluber racked up seven strikeouts over six innings of one-run ball in Friday's victory over the Rangers.
Corey Kluber pitched well in Sunday's no-decision against the Blue Jays, striking out eight while allowing two runs on six hits over 6 2/3 innings.
Corey Kluber struck out seven while tossing six frames of one-run ball in Tuesday's 3-1 victory over the White Sox.
Corey Kluber turned in a quality start Thursday, allowing three runs over six innings in a win over the Angels.
Corey Kluber delivered a strong performance in Saturday's victory over the Yankees, racking up eight strikeouts over eight innings of two-run ball.