Miami Dolphins defensive tackle Travis Ivey carries some of his teammates gear after NFL football training camp, Sunday, Aug. 1, 2010 in Davie, Fla. (AP Photo/Wilfredo Lee)

Tim Tebow sports a new hairdo during warmups after veterans gave haircuts to rookies prior to a Denver Broncos practice at Invesco Field August 7, 2010 in Denver,CO.(AP Photo/Eric Bakke)

Paul Duncan, left, and Eric Olsen show their new hairdos compliments of the veterans' haircutting during a Denver Broncos practice at Invesco Field August 7, 2010 in Denver,CO.(AP Photo/Eric Bakke)

Green Bay Packers' Tim Masthay rides a bicycle after NFL football training camp Sunday, Aug. 1, 2010, in Green Bay, Wis. (AP Photo/Morry Gash)

Houston Texans rookie wide receiver Trindon Holliday (16) is pushed on a kid tricycle by veteran wide receiver Jacoby Jones, top, after a NFL football training camp practice Wednesday, Aug. 4, 2010 in Houston. (AP Photo/David J. Phillip)

Dallas Cowboys rookies, from left, San Young, Will Barker, Phil Costa, and Mike Tepper go through drills during the team's NFL football training camp, Thursday, Aug. 5, 2010, in San Antonio. Each received a special hair cut from their veteran lineman teammates as part of a rookie ritual. (AP Photo/Eric Gay)

Dallas Cowboys rookies San Young, left, Phil Costa, center, and Will Barker are seen during the team's NFL football training camp, Thursday, Aug. 5, 2010, in San Antonio. Each received a special hair cut from their veteran lineman teammates as part of a rookie ritual. (AP Photo/Eric Gay)

Dallas Cowboys rookies San Young, left, and Will Barker go through drills during the team's NFL football training camp, Thursday, Aug. 5, 2010, in San Antonio. Each received a special hair cut from their veteran lineman teammates as part of a rookie ritual. (AP Photo/Eric Gay)

Daniel Graham gave Jammie Kirlew a bucketful during the annual Rookie Splash in the afternoon session of the Denver Broncos Training Camp at Dove Valley in Englewood,CO. August 5, 2010.(AP Photo/Eric Bakke)

Nathan Overbay dives for the football during the annual Rookie Splash in the afternoon session of the Denver Broncos Training Camp at Dove Valley in Englewood,CO. August 5, 2010.(AP Photo/Eric Bakke)

Denver Bronco Paul Duncan gets doused as he heads for the football in the annual Rookie Splash at the Dove Valley headquarters in Englewood, Co. during the afternoon session of training camp August 5, 2010.