San Diego Chargers linebacker Jarret Johnson underwent left hand surgery, according to the San Diego Union-Tribune.

Johnson has also dealt with a hamstring injury this season.

“It's by far my toughest year personally,” Johnson said. “It's frustrating. It's tough when the team needs help and you can't help. I've never been through anything like it. … Everybody's got to pull their weight, and you're standing and watching. It's frustrating. Hopefully, I'll get to a position where I can help and pull my weight because I'm definitely not pulling my weight now.”

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Aaron Wilson covers the Ravens for The Baltimore Sun.