Coco Gauff marched into the semi-finals of the Italian Open on Wednesday by beating Mirra Andreeva in straight sets, 6-4, 7-6 (7/5). American Gauff has guaranteed herself number two in the world rankings with her solid displays in Rome, where she saw off seventh seed Andreeva on centre court. Former US Open winner Gauff could face tournament favourite Aryna Sabalenka in the last four with the world number one taking on Zheng Qinwen later on Wednesday. Gauff is looking for her first title of the season, ahead of Roland Garros starting later this month, after losing the Madrid final to Sabalenka.