San Francisco 49ers running back Tevin Coleman has not had a very good 2020 so far. He started off the year with some bad numbers (just 30 rushing yards on 18 carries). Then came the really bad news, an injury that would place the sixth-year rusher on to the IR for a couple of weeks.

There was a silver lining, though. The injury was not too bad and Coleman would be able to return after a few weeks.

That was Week 8, when his San Francisco 49ers were facing off with NFC West divisional rivals Seattle Seahawks.

Things just are not going Coleman's way so far this year though. After just three carries (for a solid 20 yards), the running back suffered another injury.

Adam Schefter of ESPN reports Coleman has officially been ruled out due to that knee injury and will not return in the game.

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That's a big blow for the 49ers. They have been dealing with a ton of injuries this year—particularly a the running back spot.

Raheem Mostert and Jeff Wilson are both already injured. This is a team that absolutely thrives on their running game, too. Somehow they have managed to work around the injuries to this point this year. But this might make that a little too difficult. At this point, San Francisco is relying on a lot of players they never thought they would have to turn to in 2020.

Throw in the fact that this is a game against the incredibly tough Seahawks (5-1) in an important division game, and it just seems like too much for the 49ers to have to try and overcome.

San Francisco is working from behind, as they currently find themselves down by a few scores entering the fourth quarter. So you might assume they would be abandoning the run anyways.

However, they will likely want to try a few more carries at this point. At the same time, a healthy Coleman might have helped keep this game closer.

Hopefully the running back is healthy and can return for San Francisco's next game.