Tampa Bay placed McClanahan on the 15-day injured list Friday with left forearm tightness.
McClanahan will make his second trip to the IL in the last three months after allowing four earned runs over five innings Thursday against the Rangers. In his first big-league action since 2023, McClanahan owns a 10-7 record this season with a 3.36 ERA, 1.12 WHIP and 106:39 K:BB over 118 innings. With the 29-year-old on the shelf, the Rays recalled Alex Cook from Triple-A Durham to bolster the bullpen.