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Arsenal fans on Twitter have been reacting to what could be a devastating setback in their season, as Hector Bellerin appeared to suffer a serious knee injury in the win over Chelsea.

Arsenal got back to winning ways on Saturday, romping past Chelsea with a ruthless and controlled performance.

The visitors only managed one shot on target despite having the majority of the ball, as Unai Emery finally seems to have found some semblance of an organised defensive unit.

Look away Arsenal fans! American Soccer Fan is back to troll more fans at the London Stadium in the video below...

However, that defensive unit could be without one of its key players for an extended period of time, as Bellerin went off with a non-contact injury in the second half.

While there is no official word on the extent of the damage, it did not look good for the Spaniard, who was putting in a really good performance before the injury.

You can find some of the best Twitter reactions down below, where fans are praying it isn’t as bad as it seemed…