Not sure if anyone already posted this but last night the NY Nicks female side-line announcer talked with Blazers regarding Roy. She said that Roy/Blazers were looking into cartilage transplant surgery. She said that this has been done for retired athletes but not for an active player. No specifics were given regarding the source of the other cartilage, timing or probability of this occurring.
This is the first I've seen about it, so I'm posting here, no link as it was on NBA league pass feed of NY broadcast.