Baez edges Grenier 7-5 7-6 in Winston-Salem opener

Sebastian Baez came through a tight straight-setter against Hugo Grenier, 7-5 7-6, in the Winston-Salem Round of 32, needing a single breakthrough late in the opening set and then a tiebreak to settle the second. The difference lay in the second-serve exchanges: the Argentine won 48.1 percent of his second-serve points, while Grenier managed just 24.0 percent behind his. The Frenchman's 10 aces and 67.1 percent first-serve accuracy kept him level for long stretches, but Baez's 64.8 percent on first serve proved steadier under pressure. It was a hard-earned passage into the next round.