Nearly nine years after he was drafted No. 1 overall, Jake Long’s NFL career is over.

The former Michigan star took to Twitter to announce his retirement from the NFL on Monday:

Most recently, Long played for the Minnesota Vikings in 2016. But that season — much like his career — was cut short due to injury.

Long, 31, made four Pro Bowls to start his career from 2008-11 and he was a two-time All-Pro selection. The Lapeer, Mich. native started in 99 of 104 NFL games for four different teams.

The 6-7 offensive tackle didn’t miss an NFL game until he suffered a back injury in the final month of the 2011 season. After he was eventually placed on injured reserve, Long never played an entire season because of various lower-body injuries.

Long was a two-time B1G Offensive Lineman of the Year and a two-time All-American for Lloyd Carr’s teams at Michigan. He was the last B1G player to be drafted No. 1 overall.