Chad Johnson [Ochocinco] arrested for head-butting new wife Evelyn Lozada

NFL star Chad Johnson (formerly known s Chad Ochocinco) was arrested on Saturday night for domestic violence ... allegedly against new wife Evelyn Lozada, one of the stars of VH1's "Basketball Wives."

Johnson allegedly head-butted Lozada during an argument, and when cops arrived to the scene, Lozada had lacerations on her forehead.

The fight started when Lozada found a receipt for condoms in the center of the couple's Maserati and confronted Johnson about it. A verbal argument ensued.

At some point during the argument, Johnson head-butted Lozada. According to reports, Johnson told police he butted heads with Lozada by accident.

Johnson and Lozada were married last month after Johnson proposed in November 2010 with a massive 10-carat diamond ring.