Former U.S. Open champion Emma Raducanu will end her season prematurely after pulling out of her final two scheduled events in Tokyo and Hong Kong amid physical issues, British media reported on Thursday.

Raducanu was beaten 3-6 6-4 6-1 by China's Zhu Lin in her Ningbo opener on Tuesday after receiving treatment for a back issue, a week after the 22-year-old retired from her meeting with Ann Li while trailing 6-1 4-1 in Wuhan.