Randy Gregory of the Broncos is among the 4 players who will begin training camp.

New Broncos outside linebacker Randy Gregory will be among at least four players who will not participate in the first practice of training camp Wednesday morning.

Joining Gregory on the physically unable to perform list Tuesday were receiver KJ Hamler (knee/hip) and right tackle Billy Turner (knee). Rookie linebacker Christopher Allen (foot) was placed on the non-football injury list. All players still count toward the 90-man limit and can be activated at any time.

Gregory underwent shoulder surgery after signing a five-year, $70 million contract and sat out the entire offseason program.

“Randy’s been working really hard; he’s had a great summer,” general manager George Payton said Tuesday. “Obviously there’s some work to be done, but we expect him to be on the schedule for Week 1 (Sept. 12 at Seattle) and we’ll see if we can get him off the (PUP list) before then. can be removed.”

Hamler, who tore his ACL in Week 3 of last year, worked through individual drills during summer practices. Turner had offseason knee surgery and Allen has a non-football injury designation because he wasn’t injured in an NFL game (playing for Alabama last September).

The Broncos received good health news about other players who were injured during the offseason program. Outside linebacker Jonathan Cooper (finger), tight end Greg Dolch (hamstring) and receivers Seth Williams (undisclosed) and Tyree Cleveland (foot) were not placed on the PUP list.

Single game tickets. The Broncos will go on sale for single-game tickets on Aug. 2 at 10 a.m. Limited inventory includes ADA, full and half-price and United Club seat tickets through Ticketmaster.

Full and half price tickets are limited to four per game per household. A total of 2,000 half-price tickets ($15 each) will be available (four per household) and will be delivered to the purchaser’s mobile device on game day and cannot be resold or transferred.

Practice begins. The Broncos’ first training camp practice is scheduled for 10 a.m. Wednesday, the first of four consecutive days without padded workouts. Parking opens at 8am and gates to the Grass Brim open at 9am.