Seattle Seahawks running back Marshawn Lynch officially started his contract holdout Friday by not attending the first day of training camp.

Lynch is in the third year of a four-year, $30 million contract. He received $6 million of it in a signing bonus. He will make $5 million in base salary this season and $5.5 million in 2015, but he wants more money up front or more guaranteed money.

General manager John Schneider addressed Lynch's absence on ESPN radio in Seattle but would not say if the team would restructure the final two years on his contract.

"Without being specific, obviously, we don't talk people's contracts," Schneider said. "We all love Marshawn, but he made a decision not to be here. The thing I would say, without getting into it too deep, is we've had a plan in place for several years. Just two years ago, Marshawn was one of the first guys we were able to reward."

---Andre Johnson spent months away from the team, but when it came time for the Houston Texans to report to training camp, the All-Pro wide receiver was back in formation.

The 33-year-old wide receiver requested a trade and said he would not report to training camp after skipping offseason workouts and minicamp.

His hard-line stance appeared to soften Monday when Johnson was seen at the team facility. It is not known if first-year head coach Bill O'Brien and general manager Rick Smith made assurances about Johnson's contract or future with the team.

But coaches met with Johnson, starting the process of assimilating into the offensive system.

Johnson has three years and $31.5 million in base salary left on his contract but does not want to be part of another rebuilding project. The Texans are coming off a 2-14 season, and made another change at quarterback with journeyman Ryan Fitzpatrick pegged to replace Matt Schaub.

---New England Patriots tight end Rob Gronkowski was cleared by doctors to play, but he said he is not quite at that point just yet.

Gronkowski has participated in individual drills for the past two days and watched from the sidelines during team drills. He also worked with quarterback Tom Brady individually after practice.

Gronkowski said he does not have a timetable on when he will take part in team drills.

"If it was 100 percent, I'd be doing every single little thing," he said. "So, no, I'm not 100 percent, I'm working every single day to get to that."

Gronkowski is working his way back from a torn right ACL he sustained on Dec. 8 against the Cleveland Browns. He also missed part of the season coming back from forearm and back injuries.

---The Patriots released tight end Nate Byham four days after the team signed him. The 26-year-old Byham, a free agent, joined the Patriots on Monday after spending the past two seasons with the Tampa Bay Buccaneers and the 2010 season with the San Francisco 49ers.

---The Tampa Bay Buccaneers and guard Carl Nicks came to a mutual parting of the ways.

Nicks signed a five-year, $47.5 million contract ($31 million guaranteed) with Tampa Bay in 2012 but developed a MRSA infection in 2013 after he sustained a toe injury and played in only two games last season. The 29-year-old Nicks was limited to nine games the past two seasons because of health issues. Before coming to Tampa, he played four seasons with the New Orleans Saints.

---Jon Beason admits he is taking "baby steps" in his recovery from the foot injury he suffered during the offseason program in June, but still hopes to be manning the middle linebacker spot when the New York Giants begin the regular season.

Beason suffered a ligament tear and a small fracture to the sesamoid bone in his right foot, and began training camp on the active/physically unable to perform list. He has been spending time on the underwater treadmill while setting benchmarks in his recovery -- although no timetable has been set for his return to the field.

---The Detroit Lions signed free agent punter Drew Butler and released safety Gabe Lynn/

Butler joins the Lions after spending time with the Pittsburgh Steelers (2012) and the Chicago Bears (2013). Lynn was an undrafted free agent out of Oklahoma.

---The Cleveland Browns signed linebacker Jamaal Westerman. He is a 6-foot-2, 257-pound veteran entering his sixth NFL season out of Rutgers.

Westerman has spent time with the New York Jets (2009-11), Arizona (2012), Indianapolis (2012), Buffalo (2013) and Pittsburgh (2013).

---The Minnesota Vikings signed rookie wide receivers Andy Cruse and Ty Walker and waived wide receiver Josh Cooper and tackle Matt Hall.

Minnesota also placed tight end Chase Ford, cornerback Captain Munnerlyn and safety Andrew Sendejo on the physically unable to perform list.