SEATTLE -- It’s that time of year where the Mariners have locked up a first-round postseason bye and could be in the process of getting key players off their feet over the final weekend. But when Josh Naylor was pinch-hit for in the fifth inning of Friday’s 3-2 loss to the Dodgers , it looked like the first baseman might’ve been dealing with something more significant.

Naylor, who was Seattle’s designated hitter for the series opener against the National League West champions, was seen descending into the home clubhouse and grimacing when coming off the field after the bottom of the third inning with Mariners head athletic trainer Kyle Torgerson.

Just prior, Naylor appeared to exhibit some discomfort upon stealing second base, his 30th steal of the season. Then, in the next at-bat, h

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