Three of the Bills' free agent additions on offense will be out for an undetermined amount of time.
Tyler Kroft, the Bills' expected starter at tight end, broke a foot on the first day of organized team activities Monday, coach Sean McDermott told reporters Tuesday. Kroft will have surgery Tuesday.
It is the second time he has broken the same foot within the last six months. Kroft's 2018 season with the Cincinnati Bengals ended after five games because of a broken foot.
His availability for spring practices was already in jeopardy but he was expected to be 100%.
After signing a three-year contract that can be worth up to $18.75 million, Kroft was aiming to step into the starting role at tight end that was vacated when the team released Charles Clay earlier this offseason.
Wide receiver Cole Beasley, signed from the Dallas Cowboys, and center Mitch Morse, signed from the Kansas City Chiefs, had "core muscle" surgeries a few weeks ago, McDermott said. Morse was on the field with a helmet.
Running back T.J. Yeldon is not participating because of a groin injury.
Running back Frank Gore is a limited participant because of a foot/ankle injury.
Center Russell Bodine is still recovering from shoulder surgery, meaning both Bills centers are sidelined. Spencer Long, who played center last season for the Jets, and Jeremiah Sirles are playing the position in practices.
Defensive backs Taron Johnson and Rafael Bush will not take part in contact.
Wide receiver David Sills is limited with a hamstring injury.