New Delhi, Sept. 14 -- American world record holder Ryan Crouser made a grand return from elbow injury as the three-time Olympic champion won his third world shot put title in his first competition of the season. Crouser sealed gold by throwing 22.34m, ahead of Mexico's Uziel Munoz (21.97m). Kenya's Beatrice Chebet, the reigning Olympic 10,000m champion and world record holder, added the world title on a warm evening in Tokyo. The 25-year-old, behind Ethiopian defending champion Gudaf Tsegey at the bell, unleashed a powerful kick coming into the final stretch to clinch victory in 30:37.61. Tsegay was pushed to third, behind Italy's Nadia Battocletti. USA defended the mixed 4x400m, the final track event on the opening day of the World Champi...