Rafael Nadal is the biggest men's player to be taking part in the new International Premier Tennis League (IPTL). It's an exhibition league that will take place from late November to the middle of December, during tennis' off-season. Nadal isn't the lone star who will be involved ... Buda Mendes/Getty Images
He's joined by his pal and fellow grand slam winner Novak Djokovic. Djokovic owns six grand slam titles and is a former world No. 1. PAUL CROCK/AFP/Getty Images
Andy Murray is another on the IPTL list. Murray boasts two grand slam titles and ended a nearly 80-year wait for a British men's singles champion at Wimbledon in 2013. Pedro PARDO/AFP/Getty Images
World No. 1 and 17-time grand slam singles winner Serena Williams, left, headlines the list of women participating. Two-time grand slam winner Victoria Azarenka joins Williams. Warren Little/Getty Images
Stanislas Wawrinka stunned the tennis world when he beat Nadal in the Australian Open final. Wawrinka will be Switzerland's top player in the IPTL because ... PAUL CROCK/AFP/Getty Images
Roger Federer won't be there. Federer, the 17-time men's grand slam champion, is still the biggest name in tennis. MARWAN NAAMANI/AFP/Getty Images
Maria Sharapova won't be there, either. Sharapova might be the world's highest-profile female athlete. Ryan Pierse/Getty Images
The bubbly Li Na is likely Asia's most popular tennis player. Like Sharapova and Federer, she's giving the IPTL a miss. SAEED KHAN/AFP/Getty Images
Leander Paes, perhaps India's most accomplished player of all time, wasn't on Friday's official player list. Dan Kitwood/Getty Images
Paes' former doubles partner, Mahesh Bhupathi, is the man behind the IPTL. He's seen here with his Bollywood star wife, Lara Dutta. STRDEL/AFP/Getty Images