ENGLEWOOD, Colo. — As the quarterback competition in Denver begins, Trevor Siemian has been cleared fully to participate in offseason programming and OTAs, Head Coach Vance Joseph said.

"Trevor is full go, guys," said Joseph on Monday as the Broncos arrived back at UCHealth Training Center for offseason workouts. "He's been cleared to be a full participant in the offseason program. He's full go. He's ready to go."

Siemian underwent surgery on his non-throwing shoulder after the season ended. The first-time starter played through a grade 5 AC joint sprain during the latter part of the year.

Running back C.J. Anderson, who tore his meniscus in October against the Houston Texans, is on a slightly slower track back to action.

"Obviously with C.J., we're going to take it slow [and] make sure he's really ready to go for OTAs," Joseph said. "That's the most important date for C.J. That's when the full practice starts."

And with the regular season still five months away, Joseph said he isn't worried about Anderson's Week 1 availability.

"Well, it's the offseason," Joseph said. "I have no concerns. Phase 1 is designed to get the players in football condition. I have no concerns with C.J. as far as getting in shape [for] the first game in the fall." 

Center Matt Paradis was the final Bronco on whom Joseph provided an update. Paradis underwent surgery to alleviate pain in his hips, which bothered him all season. The 27-year-old player has not missed a single snap in the previous two seasons. 

"He's fine," Joseph said. "He's still rehabbing. Our goal for Matt's going to be July 1."