Greinke (shoulder) threw a bullpen session recently and is tracking toward a return to the Royals' rotation Thursday versus the Tigers, Jaylon T. Thompson of The Kansas City Star reports.

EDGE Analysis

It's the first day he's eligible to return after he landed on the injured list earlier this month with right shoulder tendinitis. Greinke has posted an ugly 5.44 ERA over 18 starts for Kansas City this season.