Gunnar Nelson is targeting a recovery timetable of two to three months after a knee injury took him out of action for UFC Liverpool.

The Icelandic welterweight contender released a statement Sunday following news of his withdrawal from UFC Liverpool’s co-main event opposite Neil Magny. Nelson is expected to undergo surgery on his knee Monday after suffering the injury last weekend. “Gunni” apologized to the UFC, Magny, and fight fans in his statement, which can be read below.

“Unfortunately I have to withdraw from my fight against Neil Magny on May 27th in Liverpool,” Nelson wrote on Facebook. “Last weekend I injured my knee. I will undergo an operation right away and I´ll be out for 8-10 weeks. I’m sorry to my family, my opponent, my teammates, the fans and the UFC.

“This is a huge blow to me and I’m at a loss for words to describe the disappointment I am feeling. I was really feeling up for this fight, the training camp was going great and everything was just perfect until this happened. When all is said and done this is the fight business and injuries are sometimes an unfortunate part of it given the physical rigors us athletes put our bodies through. I will keep on evolving as a fighter while I’m on the sidelines and I’ll be back as soon as I can.”

UFC Liverpool takes place May 27, 2018 at the Echo Arena in Liverpool, England. Two-time title challenger Stephen Thompson meets Liverpool native Darren Till in the night’s main event. The UFC has yet to announce a replacement opponent for Magny.

Nelson’s complete post can be seen below.