Walker mugged in Las Vegas

Raiders WR still in hospital

Oakland Raiders wide receiver Javon Walker remained hospitalized with a concussion and a battered face Tuesday, one day after he was beaten, robbed and left unconscious on a Las Vegas street after a night of partying.

Police said a large amount of cash and some jewelry were taken from Walker, who suffered "a moderate concussion and significant injuries to his face."

Police Lt. Clinton Nichols said detectives are retracing Walker's activities in the hours before he was found injured Monday morning on a street off the Las Vegas Strip.

Nichols said detectives spoke briefly with Walker on Monday and planned a second interview Tuesday evening at Sunrise Hospital and Medical Center.

A Raiders spokesman said the team was in the process of gathering information and had no further comment.

PANTHERS CLAIM ROSS: The Carolina Panthers have claimed center Pat Ross off waivers from the Indianapolis Colts. To make room on the roster, the Panthers on Tuesday waived undrafted rookie tackle Eric Tunney.

FALCONS RELEASE WILLIAMS: The Atlanta Falcons released disgruntled safety Jimmy Williams on Tuesday, two years after trading up 10 spots to pick him in the second round of the NFL draft.

EAGLES SIGN THREE: The Philadelphia Eagles rookies Jack Ikegwuonu, Joe Mays and King Dunlap all agreed to four-year contracts Tuesday. Seven of Philadelphia's 10 draft picks are under contract.

T.O. A NO-SHOW: Terrell Owens has been excused from the Dallas Cowboys' mandatory offseason minicamp this week while dealing with a personal family matter.

NO DEAL FOR HAYNESWORTH: The agent for All-Pro defensive tackle Albert Haynesworth doesn't think a long-term deal with the Tennessee Titans will be reached before the July 15 deadline.

If no deal is reached by July 15, the team can only sign their franchise player to a one-year deal and could not sign a long-term contract then until after the conclusion of the regular season.

SPECTER BACKS DOWN: Sen. Arlen Specter said he won't call for congressional hearings on the NFL's investigation of the Spygate scandal after previously threatening to do so.

JETS PRESIDENT RESIGNS: Jay Cross resigned as president of the New York Jets on Tuesday after eight years with the team to accept a position as president of Related Hudson Yards.

SIMMS NOT AT BUCS MINICAMP: Tampa Bay Buccaneers coach Jon Gruden insists his differences with disgruntled reserve quarterback Chris Simms are not personal.

Simms, a one-time starter who hasn't played in a regular season game since rupturing his spleen in September 2006, was a no-show Tuesday for the start of the team's mandatory three-day minicamp.

TATUPU PLEADS NOT GUILTY TO DUI: Seahawks linebacker Lofa Tatupu entered a plea of not guilty Tuesday to charges of driving under the influence of alcohol.