Barnes has also been downgraded to out on this week's injury report and was likely to miss or not be selected for the game against Real Salt Lake this weekend anyway but now will likely see even more time on the sidelines. Per the NEST report, we do not know the length of time Barnes could be out but he was seen with an icepack on his left knee following his last appearance against the Columbus Crew.
A versatile defender, Barnes has appeared in five games this year, starting four between center and right back. The Revolution are 2-0-2 in games that Barnes starts and he had played in five straight games until missing last week's game at Philadelphia.
If Barnes is out for an extended period of time, that would likely elevate London Woodberry into the utility defender role as he starred in the Revs win against the Union and can play both center and right back. Veteran Jeremy Hall could also be in line for more minutes having started and gone 90 minutes in his lone appearance this season against Montreal.
We will have further updates to this story as they come out and if the report is true we wish Barnes the quickest recover so that he can return to the field for the Revolution.
UPDATE (4/24, 2:55 PM): The Revolution have officially announced that Barnes will miss the next six months after undergoing successful surgery to repair a torn patellar tendon in his left knee. Barnes has been placed on the disabled list while he recovers.