Williams has edged the Spaniard to reach the quarter-finals of the Australian Open.
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Serena Williams has survived an early scare to defeat an impressive Garbine Muguruza to reach the quarter-finals of the Australian Open.
World number one Williams dropped the first set to Muguruza, before coming from behind to win the match 2-6, 6-3, 6-2 at Rod Laver Arena.
Muguruza’s impressive first set showing should not have come as a surprise to Williams, who lost to the Spaniard at Roland Garros in 2014.
Williams’ second serve let her down in the first set and she was broken twice by Muguruza and looked in serious trouble.
Williams began the second set in strong fashion, but Muguruza struck back to level proceedings in the second set.
It sparked the American back into life as she powered through the final three games to take out the set 6-3.
Muguruza looked on track to begin the final set with a bang, but the 24th seed failed to convert five break points to go 2-0 up.
Williams then broke in the seventh game and didn’t look back, taking out the final set 6-2 to reach the quarter-finals.
The no.1 seed will now face Dominika Cibulkova on Wednesday.