I've heard he'll be out 4-6 weeks. Arthroscopic surgery can have a recovery that quick, depending on the procedure. They don't typically know the length of the recovery until after the procedure is over. But with a meniscus tear, they can have you off crutches in as little as 2-3 days.
"A few million years from now the sun will burn out and lose its gravitational pull. The earth will turn into a giant snowball and be hurled through space. When that happens it won't matter if I get this guy out." -- Bill Lee