The Tampa Bay Rays put ace and Cy Young Award candidate Shane McClanahan on the 15-day injured list Thursday with left forearm tightness.

McClanahan departed his start Wednesday against the New York Yankees after four innings, and the Rays said in a statement Thursday that they are still in the process of gathering information.

McClanahan, a two-time All-Star at 26 years old, is 11-2 this season with a 3.29 ERA and 121 strikeouts in 115 innings.

The flame-throwing left-hander has been a major contributor to the Rays’ 66-45 record this season, second best in the American League, but has slumped recently.

After a sterling start to the season, McClanahan is 0-1 with a 7.36 ERA over his last six starts, pitching just 25 2/3 combined innings while also battling tightness in his mid-back.

The Rays were atop the AL East for a total of 111 days this season but find themselves trailing the Baltimore Orioles by two games after Thursday’s results.

The Tampa Bay Rays have placed left-handed pitcher Shane McClanahan on the 15-day injured list. The Rays are in the process of gathering further information and updates will be provided when available.

— Rays Communications (@RaysPR) August 3, 2023