Steelers offensive tackle Marcus Gilbert has been suspended four games for violating the league’s performance-enhancing substance policy. In a statement, Steelers GM Kevin Colbert announced that Gilbert will not appeal the ban. 
This hasn’t been a banner year for Gilbert. Thanks to injuries, he has missed five of the team’s ten games to date. His PED suspension means that he will not be eligible to play again until Christmas against the Texans in Week 16.
Gilbert, 29, is signed through the 2019 season thanks to the five-year, $30MM extension he inked before the 2014 season. The Steelers discussed another extension with him prior to this season, but they ultimately did not agree to terms and the team may have second thoughts about a fresh deal given the way things have gone in recent months.
Last year, Pro Football Focus graded Gilbert as the NFL’s No. 11 tackle among 76 total qualifiers, painting him as one of the league’s very best right tackles. Heading into 2017, the former second-round pick started 75 games over six seasons in Pittsburgh.