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SAN DIEGO (AP) San Diego police say they're investigating a claim that Chargers defensive back Antonio Cromartie hit someone in the head with a champagne bottle at a bar.

Detective Gary Hassen says officers answered a report of a fight at Bar West in Pacific Beach shortly before 1:30 a.m. Monday.

Hassen says a witness claimed Cromartie threw a champagne bottle but the Pro Bowl back says it slipped from his hand.

A man suffered a cut to the back of his head but nobody was hospitalized or arrested.

Hassen says Cromartie is under investigation for assault with a deadly weapon.

The incident occurred hours after the Chargers beat the Denver Broncos 32-3.

A call to the Chargers seeking comment wasn't immediately returned.

(Copyright 2009 by The Associated Press. All Rights Reserved.) APNP 11-23-09 1340CST | save this article / add to your favorites list