ENGLEWOOD, Colo. -- **If a young player doesn't learn and grow from the type of performance that right tackle Michael Schofield had on Sunday, then what's the point?
That was Schofield's focus Monday as he and the offensive line picked up the pieces after a 15-12 loss in which quarterback Brock Osweiler was sacked five times. All were by Khalil Mack, with four coming at Schofield's expense, including an end-zone sack that led to a third-quarter safety.
"We all need to execute -- especially me. That was definitely one of my worst games of all time," Schofield said. "But we need to execute every play. Everyone needs to do their job. That's what we've got to get back to."
On the four sacks Schofield allowed, he worked one-on-one against Mack, with no chipping help from a tight end or a running back. But Schofield did not point to that as a reason why Mack got to Osweiler so often.
"A lot of it was just me and my technique things," Schofield said. "Obviously, it'd be nice to get help, but a lot of it was my technique. I was just playing bad."
All of Mack's sacks came after halftime, including three in the fourth quarter after the Broncos fell behind.
"We started throwing the ball a lot at the end of the game, trying to get ourselves in position to win, which caused our tackles to be in some one-on-one [situations]," Kubiak said. "We tried to chip with our backs, we tried to help out a couple of times, and we didn't coordinate that very well, so that's something that we've got to do [better]."
Kubiak reaffirmed his confidence in Schofield, who stepped into the starting lineup in Week 4 after Ty Sambrailo suffered what turned out to be a season-ending injury.
Sambrailo himself was thrust into the left tackle spot after Ryan Clady tore his ACL during OTAs, which forced the Broncos to add veteran Ryan Harris for depth.
"I feel very confident in Michael," Kubiak said. "I think for a young player, he's played extremely well. He's played against some really good players. I think he's grown as a player each and every week."
Kubiak added that Schofield has been dealing with a "nicked-up ankle" in recent weeks.
"Obviously, that's a tough situation to get put in [Sunday]. I know he's disappointed. As a coach, you look at it and say, 'How can we help him some more?' and those type of things."
What the photographers saw in the Broncos' first loss to the Raiders since 2011.