Athletics' Collin Wiles: Loses spot on 40-man roster

Wiles (shoulder) was outrighted to Triple-A Las Vegas on Thursday, John Shea of the San Francisco Chronicle reports.

Wiles was called up by Oakland in mid-September and appeared in four games before he finished the season on the injured list. The right-hander was a starter at Triple-A Salt Lake for most of the year and had a 5.40 ERA, 1.40 WHIP and 106:27 K:BB in 143.1 innings.