Kris Kocurek (KO-SIR-ick) is in his second season as the 49ers defensive line coach. He joined San Francisco after spending the 2018 season as the defensive line coach with the Miami Dolphins.
In 2019, Kocurek helped the 49ers defense rank second in the NFL in total yards allowed per game (281.8), the fewest total yards allowed per game by the team since 1997 (250.8). San Francisco also ranked tied for fifth in the NFL in sacks (48.0), the most by the team in a single season since 1998 (51.0). With DLs Arik Armstead (10.0), Nick Bosa (9.0), DeForest Buckner (7.5) and Dee Ford (6.5), the 49ers were the only team in the NFL to have four-or-more players with 6.5-or-more sacks in 2019. Bosa, who played in all 16 games (14 starts) and registered 47 tackles, 9.0 sacks, one interception, one forced fumble, two fumble recoveries and two passes defensed, was named Defensive Rookie of the Year by the Associated Press and the PFWA, and Rookie of the Year by Sporting News, PFWA and Pepsi. He was also named to the PFWA All-Rookie Team and was named a starter in the Pro Bowl.