Editor's Note: The above video is from Dec. 24, 2016.
Donald Penn was nothing short of awesome last season. The veteran Raiders left tackle proved impenetrable, allowing just one sack and 27 quarterback pressures in 676 pass-blocking snaps.
He ranked high among the NFL's best left tackles at 33, engulfed a career renaissance that began after joining the Raiders three years ago. Penn made the Pro Bowl. He was a vital piece of a 12-4 team that helped the Raiders reach the playoffs.
He hasn't reveled much in that. Penn's driven by opportunities missed, and one mishap that haunts him still.
Penn locked horns with Indianapolis linebacker Trent Cole off the left edge during a Week 16 contest against the Colts, and slipped as he was tracking his man away from the pocket. Penn's feet got tangled and the big man fell. Cole remained upright, darted in and sacked quarterback Derek Carr.
It was Penn's only sack allowed all season. And Carr got hurt. He suffered a broken fibula that ended his season and realistic hopes of a Raiders playoff run.
Nearly five months have passed since that fluke play. Carr is healthy and a full participant in the Raiders offseason program. The Raiders offensive line might be better after allowing a league-low 18 sacks last season.
There's plenty to be excited about as the Raiders enter OTAs and a mandatory minicamp. Penn can't help but lament that isolated incident when Carr went down.
"You have to be an athlete. You try not to think about it too much," Penn said Tuesday. "You wish you could go back and get it back. I've taken that same set I don't know how many times, on the same field and never just slipped out of nowhere. I'm not going to put it on myself. I should have been able to do something better. You know me, I'm never going to blame the slip for happening. I should have blocked him and held on to him and taken him down with me. That play sticks with me."
That isn't all bad. It fuels Penn to continue growing as a player, even at 34 coming off an excellent Pro Bowl season.
"I'm going to try to do what I can do better and make sure it never happens again," Penn said. "I've never gotten a quarterback hurt in my life since I've been playing. That was a first. That's something I take pride in. I'm going to try my hardest to make sure that doesn't happen again."
Penn wants a different ending to this season. Last year the Raiders lost the AFC West crown and a shot to win the team's first playoff game. Penn suffered a knee injury the following week that kept him from playing in the postseason.
The goal is to realize vast potential now that the Raiders offense is back healthy again.
"I'm all about karma and stuff like that," Penn said. "Maybe (God is) trying to tell us that this is our year. We have to put in the work to get it. I know D.C. is happy, I'm dang sure happy to get him back. We're growing and masterminding this offense trying to make it as explosive as possible."