Both players are recovering from ankle surgeries and will not be back until at least six weeks into the season. In Walton's absence, veteran Dan Koppen is expected to start at center and free-agent signee Louis Vasquez is expected to start at guard, where Kuper had been a starter since 2007.
Meanwhile, left tackle Ryan Clady, who just signed a five-year deal with the team earlier this month, is recovering from shoulder surgery and may miss up to three weeks of training camp, also per the 'Post.
In the meantime, Denver's starting five may look something like this:
LT LG C RG RT
Chris Clark, Zane Beadles, Dan Koppen, Louis Vasquez, Orlando Franklin
Broncos players reported to Dove Valley on Wednesday and will hit the practice field on Thursday. Their first preseason game will be played on Thursday, Aug. 8 in San Francisco against the 49ers.
Prior to their game against the 49ers, the Broncos will hold a team scrimmage at Sports Authority Field at Mile High on Saturday, Aug. 3—admission is free. To buy tickets to Denver's preseason and regular season matches, check out Denver Broncos tickets from GoTickets.