The Browns have agreed to terms with cornerback Joe Haden. Haden's deal is worth $50 million over five years, with $26 million guaranteed, a league source told NFL Network insider Jason La Canfora. He also will receive a $12 million signing bonus paid in 2010.

Vikings wide receiver Percy Harvin was carted off the practice field on Saturday with an undisclosed injury, the Star Tribune is reporting. Earlier in practice, Harvin caught a pass from quarterback Tarvaris Jackson in tight coverage. He lost his helmet on the play, fell to the ground, and tried to run off the field. It's unknown if that contributed to the injury.

The Lions are working on a deal with rookie defensive tackle Ndamukong Suh. Detroit practiced Saturday afternoon while the team and Duh's representatives worked on a contract agreement. "I just got off the phone with those guys a minute ago," Lions president Tom Lewand said. "We had an extended conversation and I'm sure we'll have another one shortly. Both sides are focused on getting this done as quickly as possible."

Redskins coach Mike Shanahan said Saturday that defensive tackle Albert Haynesworth is dealing with swelling in his knee. Haynesworth arrived at Redskins Park "quite early," Shanahan said, but was experiencing irritation in his knee. The "recommendation from the doctors [was] to have him not run," Shanahan said. It was reported earlier that Haynesworth wouldn't take his conditioning test on Saturday. He has already failed it twice. "I don't know; it all depends on how the knee is, how he's feeling," Shanahan said of when Haynesworth will take the test again. "I never said he had to take the test every day. We want to get you in football shape and when you feel like you can pass the test, we'll let you take it and if you pass it, we'll let you practice with the team."

Veteran wide receiver David Patten announced his retirement from football Saturday morning at New England's training camp. Patten, who turns 37 on Aug. 19, said he believed he could keep up physically. But it was the mental challenge that led him to tell coach Bill Belichick he was retiring after four practices. "This is in no way, shape or form what I anticipated coming back here this year," Patten said. "I'm actually a little saddened that I'm proving some of the naysayers right this morning. Some felt I signed back with the team to retire, but that was not part of my thought process. I honestly felt like I could still play this game and play at a high level. I felt the competitive spirit and nature was still there, but over the course of the last two days and over the course of the break [before training camp] away from the team, there was a lot of reflection. There was a lot of contemplation. "I just felt like it was time. It just hit me yesterday. Camp was going really well. I was still able to go out and be competitive and operate at a high level, but I believe once you get to the point in your career where it's multiple years -- it would be my 13th year -- and you're thinking about it mentally and you're not 100 percent into it mentally wise, it's tough to play this game. I always felt like when I got to that that point, it would be in my best interests to walk away."

The Buccaneers have agreed to terms with on a five-year contract with first-round draft pick Gerald McCoy and also reached a six-year deal with restricted free agent left tackle Donald Penn. Tampa Bay general manager Mark Dominik announced the developments Saturday as the club opened training camp. McCoy signed a five-year, $63.42 million contract that included $35 million in guaranteed money, according to a league source.

Cowboys owner Jerry Jones suggested that rookie wide receiver Dez Bryant's ankle injury was a result of his workload. Jones doesn't regret the comment, but said that it wasn't meant to rip the team's coaching staff. Bryant suffered a high-ankle sprain on the second-to-last play of Friday's practice and is out four to six weeks. "I'm not being critical," Jones said Saturday. "What I'm being is analytical, or trying to be analytical. "This is when you all sit down and look at everything you're doing and see if there's some things you can do to help protect your team better, especially during this time five to six weeks away from the opening game."

Steelers quarterback Ben Roethlisberger worked with the first-team offense when the team opened up training camp. Roethlisberger will serve a conditional six-game suspension, which has opened the door for backups Byron Leftwich and Dennis Dixon. Leftwich was primarily with the second-team skill players Saturday morning and worked some reps with the starting offensive line. Dixon followed Leftwich as Pittsburgh's third quarterback. "We're going to switch it every day," Steelers offensive coordinator Bruce Arians said. "But to start the first day, we put our guys out there like we ended up in the spring ... It's the first day and it's a long way to [the end of] training camp."

The Eagles have agreed to a one-year deal with wide receiver Kelley Washington, according to a source with knowledge of the situation. Washington is an eight-year veteran.

The Lions have agreed to a five-year contract with rookie running back Jahvid Best. Best, the second of Detroit's first-round picks, was taken 30th overall in April's NFL Draft. The deal is for $12.7 million, $7.1 million guaranteed, according to a league source.