Petra Martic kept her composure in a seesaw battle with Emma Raducanu on Sunday to advance to the Round of 16 with a hard-fought 6-7(3), 6-4, 7-5 win at Indian Wells.

Raducanu was outstanding in the first set tie-break, spraying winners around the court, but her energy and service speed dipped in the second set as she appeared to struggle with some physical discomfort and Martic took advantage to level the contest.

The 11th-seeded US Open champion Raducanu bounced back in the third and was serving for the match at 5-4 but the Croatian stepped up her defence to break the British teenager. Raducanu sent a forehand long on match point to end the two-hour and 46-minute contest.

Zverev defeated

In the men’s event, Tommy Paul collected the biggest win of his career with a stunning 6-2, 4-6, 7-6(2) victory over third seed Alexander Zverev.

Earlier in the day, Alexander Bublik got revenge against Andy Murray, beating the former world No. 1 7-6 (11-9), 6-3.