Ameer Abdullah underwent surgery to repair a torn labrum in his shoulder in January.

The Detroit Lions expect him back by the start of training camp.

Jim Caldwell confirmed Abdullah had surgery but declined to give specifics, including whether Abdullah was playing with the injury the entire season.

He also said "we'll see" when he expects Abdullah to return.

"He's recovering nicely," Caldwell said.

Abdullah was a second round pick in 2015 and led the Lions in rushing yards with 597.

Tyler Eifert will undergo a minor ankle surgery and is likely to begin training camp on the physically unable to perform list.

The recovery period is estimated at three months, per the Enquirer, which could put Eifert's availability for the start of the season at risk.

Eifert has dealt with injuries throughout his career.

Jalen Ramsey has suffered a small tear in the meniscus of his right knee.

Ramsey was the fifth overall pick in the 2016 NFL Draft by the Jacksonville Jaguars.

Ramsey's knee was sore after practice, the source said, leading to an MRI the next day that revealed the small tear.

The Jaguars expect Ramsey to be available for Week 1 of the regular season.

Mark Sanchez recently underwent surgery on his left thumb and is expected to miss the beginning of offseason training activities, which begin May 24.

Sanchez initially injured the thumb while working in the weight room on Thursday.

The Denver Broncos described the injury as a torn ligament in the thumb of his non-throwing hand.

Paxton Lynch and Trevor Siemian will be taking the snaps at the start of OTAs.

Sammy Watkins had surgery three weeks ago on a broken foot.

Watkins led the Buffalo Bills in receiver yards (1,047) and touchdowns (nine) last season, his second in the NFL.

Watkins had a screw inserted in his foot to repair the injury.

Shaq Lawson will undergo shoulder surgery.

Lawson was the 19th overall pick in the 2016 NFL Draft by the Buffalo Bills.

Lawson had insisted after the draft that he wouldn't need surgery, but the Bills on Monday said they would go ahead with the procedure on Tuesday as a preventative measure.

The Bills said in the statement that Lawson had an occurrence of the condition last week but was still moving forward with the idea that he would participate in the offseason program.

"I want to take this opportunity to commend Shaq Lawson and his representatives for putting the team first by having this surgery on his shoulder done now," Bills general manager Doug Whaley said in a statement. "By doing so, he's forsaking personal goals to be 100 percent healthy when we will need him most during the regular season.

"Fans constantly hear us say that we want players with tremendous character who keep team goals ahead of personal ones and Shaq is a great example of this."

Julian Edelman underwent surgery on his left foot this offseason but he's on track to return in time for training camp.

Edelman recently was spotted in New York City with a "big boot" on his foot, riding a motorized device to get around.

Edelman's most recent foot surgery, the second on his left foot within the past year, was considered a "cleanup procedure" that is not expected to impact his 2016 regular season.

Edelman initially broke his left foot in November but he returned for the playoffs.

Melvin Gordon underwent microfracture knee surgery this offseason in January.

Gordon had a disappointing rookie season with the San Diego Chargers.

Gordon's timetable for recovery is four to six months.

Gordon suffered the cartilage tear in his left knee that required surgery during a Dec. 20 game against the Dolphins.

"I'm getting better. I'm getting better," Gordon said. "I'm not where I want to be, but I think I'm ahead of schedule. I'm sprinting pretty well. I'm cutting."

Dez Bryant has made progress in returning from ankle surgery.

Bryant missed seven games in 2015 with various injuries including a broken foot.

Jason Garrett said Bryant is on track in rehab.

"He's done a really good job with his rehab and he's made progress," Garrett said, via the team's official website. "Like with all those guys, it's a day-by-day, week-by-week thing. But he's had no setbacks, but he really continues to get better and better."

The Dallas Cowboys will likely ease Bryant back into workouts.

"He's not 100 percent, like, full-speed - what do you call it? Released, cleared to go," receivers coach Derek Dooley said. "That doesn't mean he can't, but I think June 1."

Jerry Jones says the Dallas Cowboys won't place Jaylon Smith on injured reserve when the season starts despite his recovery from a serious knee injury.

"We'll take a chance he'll be back for the playoffs," Jones said of the linebacker.

Smith tore the anterior and lateral collateral ligaments in his left knee and also suffered nerve damage in Notre Dame's Fiesta Bowl loss to Ohio State. Structurally the knee is sound, cleared at the medical re-check in Indianapolis, but the nerve issue scared off teams from putting Smith on their draft boards.

Smith was set to be a top pick in the 2016 NFL Draft but the injury dropped him into the second round.