Gilbert issued the following statement, via his Twitter account:
My statement on my decision to Opt Out of the 2020 NFL Season: pic.twitter.com/GFmdqS4Yiw
— Marcus Gilbert (@MarcusGilbert88) August 4, 2020
Gilbert was placed on the non-football illness list last Sunday.
Gilbert, 32, is a former second-round pick of the Steelers back in 2011. He is in the final year of his six-year, $30.815 million contract that included a $7.65 million signing bonus and set to make a base salary of $4,865,103 for the 2019 season.
The Steelers traded Gilbert to the Cardinals for a sixth-round pick last year. However, he was later placed on injured reserve with a knee injury.
Arizona re-signed Gilbert this past March to a one-year contract worth up to $3.75 million.
In 2018, Gilbert appeared in five games for the Steelers. Pro Football Focus had him rated as the No. 41 overall offensive tackle out of 80 qualifying players.