Britain’s Jack Draper suffered a surprise defeat to American Reilly Opelka in the second round of the Miami Open on Friday, while Ethan Quinn claimed the ​biggest win of his career by upsetting 11th seed Casper Ruud. Draper had arrived in ‌Florida on the back of a quarter-final run at Indian Wells, just his second ATP Tour event after an extended spell out with an arm injury, but was unable to build on that momentum. Opelka produced a dominant ​serving display to beat 25th seed Draper 7-6(3) 7-6(0), firing 25 aces and 47 winners ​to reach the third round on home soil. “I didn’t have many chances, especially ⁠on his serve,” Draper told reporters. “I didn’t get broken in the match so that was ​kind of my job, right?” Earlier, after rain disrupted play in Miami Gardens, fellow American Quinn saved seven ​set points on his way to a 6-4 7-6(7) victory over Ruud, progressing for the first time in his career to a third round at a Masters 1000 event. Italy’s Matteo Berrettini, a former world number six, also ​clinched a surprise 6-4 6-4 win over 10th seed Alexander Bublik. Top seeds advance Persistent rain forced further ​scheduling changes, with several matches pushed to Saturday, while world number one and newly crowned Indian Wells champion Aryna ‌Sabalenka ⁠was moved to a secondary court to face Ann Li. Sabalenka survived a stern battle against her American opponent, grinding out a 7-6(5) 6-4 victory to reach the third round. “I was there, I was fighting no matter what, even though my game probably wasn’t the best one that I have,” ​Sabalenka said in her on-court ​interview. “She played incredible ⁠tennis - she was super aggressive and she served incredibly.” Men’s top seed Carlos Alcaraz later kept his title charge on track, sailing through to the next ​round with a composed 6-4 6-4 win over Brazilian teenager Joao Fonseca. Swiatek wants to simplify her game after shock opening defeat in Miami World ​number two ⁠Elena Rybakina continued her tremendous form, defeating her Kazakh compatriot Yulia Putintseva 6-3 6-3. Sixth seed Amanda Anisimova overcame a second-set wobble, after serving for the match before the rain delay, to beat Australia’s Ajla ⁠Tomljanovic 6-1 ​5-7 6-4. Fourth seed Coco Gauff and seventh seed Jasmine Paolini ​both came from a set down to defeat Elisabetta Cocciareto and Taylor Townsend, respectively, and advanced to the next round.