A clubhouse altercation between A's teammates Billy Butler and Danny Valencia led to an injury that kept Butler out of the team's lineup this weekend, the San Francisco Chronicle reported Sunday.
The incident occurred Friday night, according to the report, after the A's opened a three-game set against the White Sox. Since then, Butler sat out games on Saturday and Sunday with what A's manager Doug Melvin said was nausea and vomiting.
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Because of Butler's symptoms, the report speculated he may have suffered a concussion during the altercation.