Nick Bosa had a historic rookie year last season for the 49ers. We all know that. Anybody could see his dominance whenever you turned on a game.
But what makes the defensive end so great? There's one part of his game that sticks out to former 49ers defensive tackle and current NBC Sports Bay Area analyst Ian Williams.
"He doesn't get tired, man," Williams said Monday on 95.7 The Game's "Bonta, Steiny & Guru." "It's ridiculous to see how well he plays when he's 60 snaps into a game. It reminds me of Justin [Smith] and those guys and Ray McDonald, because they literally never came out the game. They played 90 to 95 percent of the snaps."
Williams played four seasons with Smith and McDonald in San Francisco. He knows what it takes to be a great defensive lineman as he played with plenty of them. Williams also knows it takes more than skill, and your teammates and coaches have to rely on you to be on the field.
As the 2019 season progressed, the eventual Defensive Rookie of the Year played more and more. Bosa wasn't just there to sack the quarterback here and there -- the 49ers knew they could count on the No. 2 pick in the 2019 NFL Draft.
"Once he got to the playoffs, he looked like an eight-year vet out there," Williams said, "You just trusted him. Whether they ran his way or the opposite way, he's right there on the backside in his correct gap at all times."
Bosa finished the regular season with nine sacks, 16 tackles for loss and 25 QB hits, according to Pro Football Reference. He also added four more sacks in three playoff games. That's superstar production from a rookie.
There's no doubt losing defensive lineman DeForest Buckner will hurt Bosa. But Williams believes Bosa will thrive with a healthier Dee Ford rushing on the outside, and a combination of first-round pick Javon Kinlaw, former top pick Solomon Thomas and D.J. Jones anchoring the inside.
While Bosa obviously has the skills to thrive in the NFL for years, it's his non-stop motor that can make him a consistent superstar for the 49ers.