The Mariners are on the cusp of being at full strength health-wise, which made the abrupt departure of Trade Deadline acquisition Josh Naylor on Thursday afternoon more alarming. Seattle’s first baseman was pulled to begin the top of the fourth inning of the club’s series finale vs.

Seattle Mariners slugger Josh Naylor exited Thursday's game against the visiting Chicago White Sox after he was seen grimacing during his at-bat in the third inning.

Although he is off to a hot start over his first 13 games with Seattle, Naylor’s momentum may be briefly halted. During Thursday’s game against the White Sox, Naylor was removed in the top of the fourth inning and replaced by teammate Donovan Solano.