Minnesota Vikings running back Caleb King was arrested on suspicion of third-degree assault in the beating of another man outside a birthday party, the Anoka County sheriff’s office said Saturday.

King, who signed with the Vikings as a rookie free agent last year but didn’t play in a game, was jailed but hasn’t been charged.

The victim was a 22-year-old from Coon Rapids. King is accused of punching him repeatedly and throwing him headfirst to the ground. The man was hospitalized in serious condition with skull and facial fractures, as well as with cuts that required more than 50 stitches to close, Sheriff’s Cmdr. Paul Sommer said.

The man “may have a very serious brain injury,” Sommer said.

King was arrested without incident. He denied assaulting the man and told detectives the man fell to the ground when King was talking to him, Sommer said.

The Vikings are aware of the incident but haven’t commented.

King is from Norcross, Ga., and played at the University of Georgia.

Stadium vote delayed

Vikings fans decked out in purple and gold roamed Minnesota’s Capitol on Saturday hoping to see the state House vote on a $1 billion stadium bill, but it was delayed even as the planned end of the legislative session drew closer and despite an urgent plea from stadium supporter Gov. Mark Dayton.

The political angling came about 60 hours before the Monday-at-midnight deadline the House and Senate GOP have set to adjourn the session for the year. Dayton, who has devoted many hours to talking up and lobbying for the state’s proposed $400 million stadium subsidy, said lawmakers must act on the stadium before they leave St. Paul.