Japan's Naomi Osaka lost in the first round of the women's singles tennis at the Paris Olympics on Saturday, falling to Germany's Angelique Kerber in straight sets.In a battle between former world No. 1 who have a total of seven Grand Slam titles between them, Kerber won 7-5, 6-3 as Osaka faded late in both sets of the 1-hour, 8-minute match on center court of Stade Roland-Garros.Osaka made 30 unforced errors compared to 11 for Kerber.The Japanese four-time Grand Slam champion earned the first break of the match to lead 3-1 in the first set but allowed her left-handed, 36-year-old opponent …READ FULL ARTICLE