Cubs pitcher Matthew Boyd, middle, walks off the field after being relieved by manager Craig Counsell, left, during a pitching change in Tuesday’s game against the San Francisco Giants. AP

After Tuesday's loss in San Francisco, it was worth asking if Cubs starter Matthew Boyd could use a rest.

Instead, Jameson Taillon will get another break. He went on the injured list Wednesday with a left groin strain. Taillon said he felt something while warming up for the fifth inning in Anaheim on Sunday, and was able to record three outs before leaving the game.

He threw off the mound Wednesday and could still feel the muscle pain. So Javier Assad was recalled from Triple-A Iowa and will start in Taillon's place on Saturday in Colorado.

“He threw about 12 or 14 pitches, and it went pretty well,”

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