Conversation so far:
What is the New World Order?
The New World Order (commonly abbreviated as nWo) is a professional wrestling stable that originally consisted of Hollywood Hulk Hogan, Scott Hall and Kevin Nash.
What did the New World Order describe themselves as?
nWo originated in World Championship Wrestling with the gimmick of a group of unsanctioned wrestlers aiming to take over and control WCW in the manner of a street gang.
Who is Randy Savage?
Randall Mario Poffo (November 15, 1952 – May 20, 2011), better known by his ring name Randy Savage, was an American professional wrestler, actor and color commentator.
How many championships did savage win?
Randy Savage won 29 titles during a 32-year career, including two WWF World Heavyweight Championships and four WCW World Heavyweight Championships.
Who is Sting?
Steve Borden, better known by the ring name Sting, is an American retired professional wrestler, actor, author and former bodybuilder, regarded as one of the greatest professional wrestlers ever.
Anything else i need to know about Randy Savage?
After the June 15 episode of Nitro, Randy Savage took a hiatus from the company to recover from at least two major knee surgeries.

Question: Why did Savage have knee surgeries?
Self-contained rewrite: Why did Randy Savage have knee surgeries?