Japanese world No. 7 Kei Nishikori advanced to the third round of the French Open with a hard-fought 4-6, 6-4, 6-4, 6-4 win over France's Jo-Wilfried Tsonga on Wednesday.Having come into the match off a straight-sets victory over another Frenchman, Quentin Halys, Nishikori found the going much tougher against the big-serving Tsonga.With the crowd at Court Philippe-Chatrier on his side, the 82nd-ranked Tsonga closed out the first set by winning two straight break points after Nishikori went up a break at 4-3.The seventh seed from Japan started the second set by breaking Tsonga in the opening…READ FULL ARTICLE