Wilhelmsen was optioned to Triple-A Round Rock on Tuesday, Jeff Wilson of the Fort Worth Star-Telegram reports.

EDGE Analysis

An absolutely disastrous outing Monday -- he gave up six runs on nine hits in one inning -- raised Wilhelmsen's ERA to 10.55 through 21.1 innings with the big club this season. Nick Martinez was recalled in a corresponding move. Wilhelmsen could be a DFA candidate the next time the Rangers need to free up a spot on the 40-man roster.