Jeffrey Dugas, MD, performed knee surgery on WWE's Jorge Arias, also known as Sin Cara, WWE reports.
Here's what you should know:
1. Mr. Arias had scar tissue that prevented his knee joint from functioning normally.
2. Dr. Dugas removed the scar tissue Aug. 14.
3. Mr. Arias has begun the rehabilitation process.
4. Dr. Dugas is an orthopedic surgeon at Andrews Sports Medicine & Orthopaedic Center in Birmingham, Ala.