Roger Federer to return to US Open 4 yrs after retirement; to play 2 exhibition matches

Roger Federer will return to US Open four years after retiring from professional tennis, to play two exhibition matches during Fan Week. The 20-time Grand Slam champion will face longtime rival Andy Roddick in a singles match before teaming with John McEnroe against Roddick and Andre Agassi in doubles. Federer won five consecutive US Open titles from 2004 to 2008.