grass court tune-up, losing in the quarterfinals of the Eastbourne International to Angelique Kerber. At Wimbledon, Halep made it to the final as the seventh seed, only dropping one set in the second round against compatriot Mihaela Buzărnescu. She did not face a seeded opponent until she defeated No. 8 Elina Svitolina in the semifinals. Halep entered the final against Serena Williams as an underdog, having won just one match against her in ten meetings. Nonetheless, she won the championship easily in under an hour, losing just two games in each set, and committing only three unforced errors in the entire match, the fewest ever recorded in a Grand Slam final. She became the first Romanian to win a Wimbledon singles title and rose back to world No. 4. After Wimbledon, Halep only played the two Premier 5 tournaments in the lead-up to the US Open, retiring in the quarterfinals of the Canadian Open and losing in third round to eventual champion Madison Keys at the Cincinnati Open. Although she won her first-round match at the US Open for the first time in three years, she was upset in the following round by Taylor Townsend. Halep closed out her season at the WTA Finals, where she reunited with coach Darren Cahill. After opening with a victory over No. 4 Bianca Andreescu, she did not advance out of her round robin group after losing to No. 8 Elina Svitolina and No. 2 Karolína Plíšková. She finished the season at No. 4 in the world. 2020–21: Three WTA titles, injury, and out of top 10 Halep started the 2020 WTA Tour at the new tournament in Adelaide, where she defeated Ajla Tomljanović, but lost in the quarterfinals to Aryna Sabalenka. At the Australian Open, Halep reached the semifinals, where she lost to Garbiñe Muguruza, after having defeated Jennifer Brady, Harriet Dart, Yulia Putintseva, Elise Mertens, and Anett Kontaveit. Halep won her 20th WTA title at Dubai, defeating Ons Jabeur, Aryna Sabalenka, and Jennifer Brady, before defeating Elena Rybakina in a tight third-set tiebreak in the final. In August, she won her 21st WTA title, at the Prague Open, where she defeated Elise Mertens in the final. Her 22nd title followed in September, when she beat an injured Karolína Plíšková in the Italian Open final. At the French Open, Halep was the heavy favorite and won her first three matches in straight sets,