Los Angeles Rams WR Cooper Kupp has established himself as the go-to slot receiver, according to Alden Gonzalez of ESPN.com.

Indianapolis Colts RB Marlon Mack (undisclosed) missed minicamp with an undisclosed injury, but Stephen Holder of the Indianapolis Star doesn’t believe the injury is serious.

Jared Dubin, of CBSSports.com, reports Houston Texans head coach Bill O’Brien says rookie quarterback Deshaun Watson won’t be limited in the offense. “We put a lot on his plate during the spring, and he handled it very well,” O’Brien said, per the Houston Chronicle. “He made mistakes, and he corrected them. You don’t see him make the same mistake twice. He can do a lot of things. He can operate our running game and in our passing game. He’s got a lot of athleticism. I don’t think we’ll have to limit him. Training camp and preseason games will be a big test.”

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Washington Redskins WR Maurice Harris is a lock for the roster and has a chance to be the No. 4 receiver this season, according to Rich Tandler of CSNMidAtlantic.com.

Detroit Lions head coach Jim Caldwell said he still has confidence in RB Dwayne Washington even though Washington struggled at times last season.

Detroit Lions head coach Jim Caldwell said he still has confidence in RB Dwayne Washington even though Washington struggled at times last season.

Detroit Lions head coach Jim Caldwell said he believes RB Zach Zenner can be an effective option for the Lions this season because of his skill set and his steady improvement. ‘He can run the ball. He can pass protect. He can catch the ball out of the backfield if need be and I think just another year under his belt is going to be a great help. Zach is one of those guys that I think without question can be effective for us,’ Caldwell said.

Los Angeles Chargers PKs Josh Lambo and Younghoe Koo split repetitions during offseason workouts and will compete for the kicker job during training camp.

Tampa Bay Buccaneers FS J.J. Wilcox (undisclosed) and S Justin Evans (undisclosed) missed a majority of the offseason workouts because undisclosed injuries.

Tampa Bay Buccaneers FS Chris Conte and S Keith Tandy are expected to open training camp as the starting safeties.