Tennis-Relentless Sabalenka beats Osaka to reach French Open quarters
By Shrivathsa Sridhar and Julien Pretot PARIS, June 1 (Reuters) - Aryna Sabalenka passed one of her sternest tests yet in her pursuit of a maiden French Open crown on Monday, overpowering Naomi Osaka 7-5 6-3 in a pulsating duel to power into the quarter-finals of the claycourt Grand Slam.