Although Young did not become the 49ers' starter until his 8th NFL season, and he played a full season only three times (all consecutively) during his 15-year career, Young had a significant impact on the NFL. A two-time league MVP, he completed 2,667 of 4,149 passes for 33,124 yards and 232 touchdowns, with 107 interceptions, and 43 rushing touchdowns. His 96.8 career passer rating is the sixth highest in NFL history and second highest among retired players, behind Tony Romo; his 4,239 rushing yards are the fourth most ever gained by a quarterback, behind Michael Vick, Cam Newton, and Randall Cunningham. He was the NFL's top rated passer in six different seasons and led the league in touchdown passes four times. In 20 postseason games, he threw 20 touchdown passes with only 13 interceptions, and scored 8 touchdowns on the ground. In his stint with the San Francisco 49ers, Young passed for 29,907 yards, 221 touchdowns, and 86 interceptions, with a passer rating of 101.4, highest in franchise history. He was also sacked 290 times, also most in franchise history.