Bryan Alvarez of the Wrestling Observer is reporting that Matt Jackson of the Young Bucks is suffering from a partially-torn MCL and a slight tear in his ACL.

The injury happened back in July when the Bucks took on The Butcher and The Blade in a falls count anywhere match and Matt has been wrestling with it since then, doing several rehab to avoid undergoing surgery.

The two brothers will have a tough, hard-hitting match tomorrow at Full Gear against FTR for the AEW World Tag Team titles. There is a stipulation that if The Young Bucks lose the match, they will never challenge for the tag titles ever again in AEW, a stipulation similar to what Cody had – and lost – against Jericho.