On Tuesday, Bears TE Zach Miller announced he was retiring from the NFL.

A serious knee injury midway through the 2017 season nearly cost Miller his leg and ultimately ended his NFL career.

Miller, 33, is a former sixth-round pick of the Jaguars back in 2009. He signed on with the Bears in 2015 and returned to the team on a two-year, $5.5 million contract includes $3 million guaranteed in 2016.

Miller made a base salary of $1.5 million this season and will be an unrestricted free agent in the coming months.

In 2017, Miller appeared in eight games and caught 20 passes for 236 yards receiving and two touchdowns.