Tennis-Steady Stan marches on against up-and-down Fognini

PARIS, June 3 (Reuters) - World number three Stan Wawrinka cruised into the French Open fourth round against an out-of-sorts Fabio Fognini on Saturday, winning 7-6(2) 6-0 6-2 as the Italian's game fell apart after a strong first set. The 2015 champion in Paris has yet to drop a set in the 2017 tournament, but this time he came close to conceding the first, which the unpredictable Italian failed to serve out before losing in a one-sided tiebreak. Fognini, seeded 28, had won two of his three matches against top-five opponents this year, beating then fourth-ranked Kei Nishikori in Miami and number one Andy Murray in Rome. But on a murky Court Suzanne Lenglen where the weather matched his own darkening mood, the Italian lost the second set without taking a game, punctuating wild forehands with a clutch of double faults before getting treatment on his left knee. At 5-2 down in the third set, Fognini saved two match points before the 32-year-old Swiss fired down an unreturnable serve on the third. "It was a very good first set and I was a bit hesitant, but after that I relaxed," Wawrinka said courtside. "I am playing very well at the moment but we all know how that can go in a grand slam... Each game gets more difficult." Wawrinka will play the winner of the all-French clash between Gael Monfils and Richard Gasquet in the fourth round. (Reporting by John Stonestreet, editing by Pritha Sarkar)