The Minnesota Vikings can't really afford another running back injury.
But in the second half of their Week 5 game in London, RB Jordan Mason went down to the turf at Tottenham Hotspur Stadium.
It wasn't immediately clear what happened, but Mason seemed to be grabbing at the back of his right leg.
Mason had just scored a rushing TD on the previous drive, but the Vikings then gave up a David Njoku touchdown to allow the Browns to take a 17-14 lead. That was the score in the third quarter when Mason went down.
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Behind Mason on the depth chart is Zavier Scott, who had a really effective game in Dublin a week ago and was getting some carries in lieu of Mason on Sunday in London. Mason lost an early fumble, that seemed to temporarily place him in the doghouse.
The Vikings have two other backfield options available on Sunday.
Cam Akers is one of them. He already made a big contribution to the game, throwing a touchdown to Josh Oliver out of the Wildcat formation.
The Vikings also have fullback C.J. Ham.
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Ham's main role on Sunday was playing alongside Carson Wentz on third-down shotgun snaps, when Ham would stay in there as a pass blocker against Myles Garrett and company.
The play after Mason got hurt, the Vikings used Ham on a third-and-long, and then they punted, so Mason's availability wasn't yet clear.
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