Chicago Police are investigating whether the Monday morning shootings of two men near the Rock ‘n’ Roll McDonald’s resulted from a fight that spilled out of a club where there was a party for NBA player Antoine Walker, sources said.

The birthday party for Walker was held Sunday at Excalibur, 632 N. Dearborn, according to sources close to the player. But Walker’s mother—who was at the party all night—said there were no fights she was aware of at the gathering.

Diane Walker said the party for her son was held in the entire club and that it was “fantastic’’— with no problems.

Chicago Police were called to Clark and Ohio about 4:15 a.m. after shots were reported in the area.

The two victims had already driven themselves to Stroger Hospital, where 25-year-old Curtis Ellis died, authorities said. The second victim, a 30-year-old, was listed in critical condition.

Police are investigating whether the shooting stemmed from a gang dispute and whether it’s connected to a fight that might have happened at Excaliber.

Walker recently was traded from the Minnesota Timberwovles to the Memphis Grizzlies. He graduated from Mount Carmel high school and was one of several NBA players who were the victims of home invasions last year. Sun Times