Emma Raducanu is the first British woman to win a Grand Slam singles title since Virginia Wade in 1977
The British Emma Raducanu lost her first match as a Grand Slam winner and was beaten in two sets by the Belarusian Aliaksandra Sasnovich in Indian Wells.
The number 22 in the world, Raducanu, was aiming for the eleventh win in a row since he won the US Open last month as a qualifier.
But Sasnovich, who is in 100th place worldwide, defeated the 18-year-old in the second round of the BNP Paribas Open 6: 2 and 6: 4.
Raducanu, who received a bye in the first round, will next play in the Kremlin Cup in Moscow in 10 days.
The British competed without a permanent coach after ending her partnership with Andrew Richardson, whom she has known since she was 10, after her US Open success.
After the game, she told BBC Sport: “We had some great memories together – at the US Open and before that – but I’m looking forward to the next chapter and I think what I’m doing right now is definitely the best for me and my tennis. “
Raducanu got off to an excellent start against Sasnovich – he stuck to love in the opening game in front of about 4,000 spectators in the night session.
But an easy service game followed, and since her 27-year-old opponent played excellent defensive tennis, the US Open winner was forced to make many mistakes.
Raducanu seemed keen to end rallies quickly on the slow court and Sasnovich fell in love again and won the first set.
It was the first set Raducanu had lost since losing three sets to Clara Tauson in the final of the Challenger event in Chicago on August 22nd.
Sasnovich also broke first in the second set when she showed the offensive side of her game.
In the next game, however, two double faults followed and when Raducanu began to find some composure, the teenager was able to take a 4-2 lead.
The improvement was short-lived, however, and Sasnovich won the last four games of the game to complete an even-set win.
The Belarusian meets the two-time Grand Slam winner Simona Halep in the third round on Sunday.
Raducanu said: “I think Aliaksandra played a great game. She was better than me today so she deserves the win.
“I’m kind of glad what happened today happened so I can learn it and take it as a lesson.
“After every defeat, there will be disappointments. I did not put myself under pressure because I am so inexperienced in my thoughts that I take everything in.”