Washington Wizards guard John Wall underwent a knee procedure & is expected to miss extended time. According to reports, Wall received combination of PRP and viscosupplementation injections for his knee pain. These were helpful to allow him to play but is now likely dealing with increased pain and swelling. Likely dealing with a combination of meniscal injury as well as arthritis. He could be out 6 to 8 weeks, although unclear exact nature nature of surgery.