NFL

	Bears sign DT Collins The Chicago Bears have signed defensive tackle Nate Collins to a one-year contract. Terms of the deal were not disclosed.
	Pats sign first-round draft choice DE Jones The New England Patriots signed first-round draft selection Chandler Jones on Wednesday.
	Broncos acquire FB Gronkowski from Colts The Denver Broncos acquired fullback Chris Gronkowski from the Indianapolis Colts on Wednesday in exchange for cornerback Cassius Vaughn.
	49ers sign P Lee to contract extension The San Francisco 49ers signed punter Andy Lee to a six-year contract extension Wednesday that will keep him with the team through the 2018 season.
	NFL players file collusion lawsuit against league The National Football League Players Association has filed a lawsuit in Minnesota, claiming the league instituted a secret salary cap for the 2010 season.
	Packers sign Merling The Green Bay Packers have signed defensive end Phillip Merling, who spent his first four NFL seasons with the Miami Dolphins.
	Line of Scrimmage: Bucs building a whole new attitude The Tampa Bay Buccaneers made plenty of noise with their atypical full-bore splash into this offseason's free-agent pool back in March.
	Raiders' McClain makes statement on shooting incident Oakland Raiders linebacker Rolando McClain, who was found guilty of four criminal charges and sentenced to 180 days in jail last week, briefly addressed reporters on Tuesday.
	NFL approves five-year extension for Bills' Toronto series The NFL's International Committee approved a five-year extension that allows the Bills to continue playing games in Toronto.
	NFL making thigh and knee pads mandatory by 2013 A successful vote by owners Tuesday at the league meeting in Atlanta has made it mandatory for players to wear thigh and knee pads for the 2013 season.