LAS VEGAS — Authorities in Las Vegas have charged Hall of Fame defensive lineman Warren Sapp with biting his girlfriend, throwing her to the ground and stepping on her head in an April incident that began at the M Resort in Henderson, Nevada.

The criminal complaint filed Thursday in Las Vegas Justice Court charges Sapp with three domestic battery misdemeanors that carry up to 18 months in jail if he’s convicted.

The accusation is the latest charge against Sapp, who was arrested Feb. 2 in Phoenix for assaulting and soliciting a prostitute during Super Bowl weekend. He pleaded guilty to both charges. The solicitation charge was dropped last month when he completed a diversion program.

The NFL Network, where Sapp appeared as an on-air analyst since 2008, fired the former tackle and defensive end hours after his February arrest.

Three months later, a Las Vegas police report said Sapp and his girlfriend of five years were arguing when the former football player allegedly threw a margarita in her face at the resort’s pool. The police report says security footage at the resort showed Sapp aggressively pull on the woman’s arm or purse inside the resort, causing her to lose her balance.

Sapp’s girlfriend told police that the arguing continued during the drive home and at her Las Vegas condo.

She told police that Sapp bit her middle finger at some point but couldn’t remember how it happened. After returning to her condo, she told police she wasn’t sure how she ended up on the floor but remembered that Sapp had stepped on the right side of her face. She thought she may have suffered a concussion, according to the report.

Titans

STADIUM GETS NEW NAME: In Nashville, Tennessee, the Titans’ home field is changing its name from LP Field to Nissan Stadium.

Officials from the Titans and Nissan announced Thursday a 20-year partnership that renames Nashville’s downtown stadium. The naming rights are subject to approval by the NFL and Metro Government Authority. The Titans’ home stadium had been known as LP Field since 2006.

The stadium opened in 1999 and was named Adelphia Coliseum at the time.

The city-owned stadium also is the home field for Tennessee State football and the Music City Bowl as well as many concerts and other events, including the annual Country Music Association Music Festival. In a release announcing the agreement, Nissan senior vice president Fred Diaz called the stadium “a centerpiece of the downtown skyline.”

The naming rights agreement includes the opportunity for Nissan branding on the facility’s exterior as well as signage and other displays inside the stadium.

Nissan’s Tennessee presence includes its North American headquarters in Franklin and manufacturing facilities in Smyrna and Decherd. The Smyrna plant has more than 8,400 employees, and it assembled more than 648,000 vehicles in 2014.