Redskins' Keenan Robinson tore pectoral

Washington Redskins linebacker Keenan Robinson could miss the entire season with a torn left pectoral muscle, according to NFL Network and the Washington Post.

The 2012 fourth-round draft pick from Texas could miss anywhere from three to five months.

Robinson got hurt Thursday

It's a familiar injury for Robinson, who tore his right pectoral and was out for the season last year as a rookie.

He had to undergo surgery for that one and will likely require another surgery to repair the damage to his left side.

Robinson was regarded as a key backup.

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Aaron Wilson covers the Ravens for The Baltimore Sun

Aaron Wilson
Aaron Wilson covers the NFL for National Football Post, his second stint at the Post. He has previously written for Pro Football Talk and FOX Sports-Scout. Entering his 13th year covering the Baltimore Ravens, he's a beat writer for The Baltimore Sun. Wilson has also covered the Jacksonville Jaguars and Tennessee Titans.

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