16 years He played 14 seasons in the NFL with the 49ers, Chiefs, and Washington after being drafted first overall by San Francisco in the 2005 NFL Draft out of Utah. Smith threw for 35,650 yards and 199 touchdowns in 167 starts. He also rushed for 2,219 yards and 26 scores. He was named MVP of the NFC Championship Game after leading the 49ers to a victory over Seattle in 2013. A week later, he turned 36 years old. After starting six games for the Redskins in 2015, Smith was replaced by Kirk Cousins. He finished his NFL career with a record of 76-63 as a starter. In January 2016, Smith joined the Dallas Cowboys as their quarterback for the final four games of the 2015 season after Dak Prescott was injured. He started one game for the Cowboys in 2016 before being released at the end of the season. Smith signed with the 49ers on March 17, 2017. However, he was released a month later after struggling during training camp. He returned to Kansas City in October 2017 when the team hired him as their backup quarterback. He will be 34 years old in April. Currently, Smith is the second all-time leader in passing yards (35,650) and touchdown passes (199). He is also third in completion percentage (60.9%).