The Champions Challenge Series will feature world-renowned tennis champions competing for ranking points and a bonus pool totaling $1 million that will be shared by the top three finishers at the conclusion of the condensed five-week season. Each of the 12 one-night tournaments will feature four champions paired off in one-set semi-finals, culminating with the winners competing for the title in an eight-game pro-set championship match. Confirmed players include Andre Agassi, John McEnroe, Pete Sampras and Jim Courier. Subject to change.
Added by Upcoming Robot on October 12, 2011