Jo-Wilfried Tsonga has defeated Viktor Troicki of Serbia in the second round of the Sony Open on Saturday. Tsonga won the match in the straight sets by 7-6(6), 6-3. This was Tsonga’s 6th match against Troicki. In the earlier 5 matches, Troicki had defeated Tsonga 3 times. In the 3rd round, Tsonga will face Jarkko …