Wisconsin receiver Marcus Randle El, 19, punched another 19-year-old late Friday night at his home in Madison. The man sustained minor injuries and was treated and released, police said in a statement.
Randle El, a sophomore, was booked on a tentative charge of battery and released from jail, Madison police Sgt. Jim Dexheimer said.
Randle El's status with Wisconsin was not immediately known. He had one catch this season, for a touchdown in a Sept. 10 victory over Temple.
In June, Randle El entered the Dane County district attorney's First Offenders Program after pleading guilty to disorderly conduct for allegedly shoving his girlfriend in March.
He was suspended from the team but appealed and was allowed to play in the second half of the Badgers' spring practices.
Under Wisconsin's student-athlete discipline policy, players arrested or charged with a violent offense are immediately suspended from competition and practices, but they can appeal for reinstatement.
Message left for the school's athletic department spokesman were not immediately returned.
Wisconsin plays Auburn on Jan. 2 in the Capital One Bowl in Orlando, Fla.