Holcomb's knee injury suffered last season could be career-threatening, Chris Mueller of 93.7 The Fan reports.
Pittsburgh placed Holcomb (knee) on its injured reserve list Monday, Teresa Varley of the Steelers' official site reports.
Holcomb will undergo surgery for the knee injury he suffered Thursday and miss the rest of the season, Tom Pelissero of NFL Network reports.
Holcomb had 11 tackles (seven solo) and a fumble recovery in Sunday's 20-10 loss to the Jaguars.
Holcomb logged eight tackles (three solo) and a forced fumble during the Steelers' 26-22 win over the Browns on Monday.
Holcomb should be ready to participate in OTAs after he recently said that his foot is fully healed, Joe Rutter of Trib Live reports.
Holcomb (foot) and the Steelers agreed to a three-year contract Wednesday, Tom Pelissero of NFL Network reports.
Holcomb (foot) underwent foot surgery and is done for the season, Tom Pelissero of NFL Network reports.
Washington placed Holcomb (foot) on its injured reserve list Friday, Sam Fortier of The Washington Post reports.
Coach Ron Rivera said Wednesday that Holcomb is meeting with a foot specialist, John Keim of ESPN.com reports.