In this Oct. 28, 2002 file photo, Dallas Cowboys running back Troy Hambrick pauses before answering a question while sitting at his locker at Texas Stadium in Irving, Texas. A Tampa judge sentenced the former NFL running back on Tuesday, May 13, 2008 to five years in prison for selling crack cocaine.

Dallas Cowboys quarterback Tony Romo smiles as he throws the first pitch before a baseball game between the Chicago Cubs and the Arizona Diamondbacks on Sunday, May 11, 2008 in Chicago.

In this March 18, 2008 file photo, Dallas Cowboys quarterback Tony Romo, left, and actor Jessica Simpson, right, take in an NBA basketball game between the Los Angeles Lakers and Dallas Mavericks in Dallas. HBO is bringing its "Hard Knocks" franchise back to Cowboys training camp this summer.

In this Feb. 6, 2008 file photo, Dallas Cowboys football player Terrell Owens laughs after an NFC practice for the Pro Bowl in Kapolei, Hawaii. HBO is bringing its "Hard Knocks" franchise back to Cowboys training camp this summer.

In this Nov. 11, 2007 file photo, Dallas Cowboys owner Jerry Jones is shown on the field before the Cowboys game against the New York Giants at Giants Stadium in East Rutherford, N.J. HBO is bringing its "Hard Knocks" franchise back to Cowboys training camp this summer.

Dallas Cowboys rookie corner back Mike Jenkins (31) reaches out for a pass as he participates in drills in a morning practice during rookie mini camp at the Cowboys training facility in Irving, Texas, Friday, May 2, 2008. Jenkins, a cornerback from South Florida who was the second of Dallas' two first-round draft picks, said Saturday he just wants to fit in on a team that went 13-3 last season.

Dallas Cowboys rookie corner back Mike Jenkins (31) runs up the field as he participates in drills in a morning practice at rookie mini camp at the Cowboys training facility in Irving, Texas, Friday, May 2, 2008.Jenkins, a cornerback from South Florida who was the second of Dallas' two first-round draft picks, said Saturday he just wants to fit in on a team that went 13-3 last season.

Dallas Cowboys rookie corner back Mike Jenkins (31) walks off the field after participating in a morning practice session during a rookie mini camp at the Cowboys trainig facility in Irving, Texas, Friday, May 2, 2008. Jenkins, a cornerback from South Florida who was the second of Dallas' two first-round draft picks, said Saturday he just wants to fit in on a team that went 13-3 last season.

Tennessee Titans coach Jeff Fisher talks with reporters after a workout for rookie players Friday, May 2, 2008, in Nashville, Tenn. Undrafted running back Rafael Little came to the practice wearing No. 32, the number worn by Adam "Pacman" Jones, who was arrested six times by police before being traded to the Dallas Cowboys. Little took the jersey off after Fisher spoke with him. When asked if the Titans were retiring the number, Fisher said, "I'm sending it to Dallas."

Dallas Cowboys rookie running back Felix Jones reaches out for a pass as he participates in drills during the NFL football team's rookie minicamp at the Cowboys' training facility in Irving, Texas, Friday, May 2, 2008.

Dallas Cowboys secondary coach Dave Campo, right, instructs rookie cornerback Mike Jenkins during the NFL football team's rookie minicamp at the Cowboys' training facility in Irving, Texas, Friday, May 2, 2008.

Dallas Cowboys rookie running back Felix Jones (28) sprints after taking a handoff during drills in a morning session at the NFL football team's rookie minicamp at the Cowboys' training facility in Irving, Texas, Friday, May 2, 2008.

NEW ORLEANS - APRIL 29: New Orleans Saints running back Reggie Lewis watches the Dallas Mavericks play against the New Orleans Hornets in Game Five of the Western Conference Quarterfinals during the 2008 NBA Playoffs at New Orleans Arena on April 29, 2008 in New Orleans, Louisiana. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2008 NBAE (Photo by Layne Murdoch/NBAE via Getty Images)