I'm American, honey. Our names don't mean shit.

Authorities on Tuesday were investigating the accident that injured two Illinois basketball players -- one seriously -- when their car went off the road and slammed into a tree.

Brian Carlwell, 19, was at Carle Foundation Hospital in Urbana Tuesday in serious condition with a severe concussion, Illinois sports information director Kent Brown said. Carlwell previously was listed in critical condition.

His teammate, Jamar Smith, was treated at the hospital for a concussion and released after the accident, Brown said.

Police cited Smith, a 19-year-old from Peoria, for improper lane usage, Brown said, and campus police say further action is possible pending the outcome of the investigation.

Smith, a 6-foot-3 sophomore guard, was driving the car sometime between 11:30 p.m. and 11:45 p.m. Monday on the fringe of the campus when it crossed the center line and struck a tree, according to Brown and University of Illinois police Sgt. Vanessa Horsman.

"We're trying to determine why he crossed the street and struck a tree," Horsman told The (Champaign) News Gazette.

According to the National Weather Service, it was snowing heavily in the Champaign area Monday night, but it wasn't known what, if any, role weather played in the accident.