Emma Raducanu said she “did not feel anxious” on the court as she returned to action for the first time since dealing with a stalker at the Dubai Open last month. The 22-year-old was beaten in straight sets by Japan’s Moyuka Uchijima in the first round of Indian Wells amid extra security in California.

Emma Raducanu reeled off nine straight games in a facile 6-2, 6-1 victory over an unknown Japanese 19-year-old at the Miami Open on Wednesday, but the real story was her split with coach Vladimir Platenik.

Raducanu, who was ousted in the first round at Indian Wells, regained her footing against Ishii as she won 77 per cent of her first-serve points, fired down six aces and converted five of her six break point chances in the 65-minute match.