May 15 (UPI) -- Emma Raducanu rehired coach Andrew Richardson, who helped her win her lone Grand Slam singles title at the 2021 U.S. Open , she announced Friday. Raducanu and Richardson split just weeks after her win over Canada's Leylah Fernandez in the finale of the 2021 U.S. Open. She hasn't advanced past the third round in 13 Grand Slam appearances since that title run. "Grateful to have reconnected with someone who has known me for over a decade now and looking forward to building together