Dubai ATP Men's Tennis Championship gets underway tomorrow. The tournament has an impressive line up with the defending Champion and number one Novak Djokovic, Second seed Juan Del Potro, third seed Thomas Berdaych and fourth seed Roger Federer in action. India's lone challenger is Somdev Devvarman who will face Second seed Argentine Del Potro in his opening match. <br/><br/>Four times Dubai Champion and World Number One Novak Djokovic plays against Uzbekistan's Denis Istomin in his first match. Five time Dubai champion Roger Federer, Thomas Berdaych and Jo Wilfred Tsonga will be up against tournament qualifiers which will be decided today. If the matches go along expected lines, Novak Djokovic and Roger Federer may be pitted against each other in the Semifinal.