Alexander Zverev, who had his back against the wall, managed to defeat Peruvian lucky loser Juan Pablo Varillas in five sets on Tuesday to advance to the second round of the Australian Open.
The German, who was down two sets to one, responded to the challenge and defeated the World No. 103 4-6, 6-1, 5-7, 7-6(3), 6-4 to record his first tour-level victory of the year.
During his semifinal match against Rafael Nadal at Roland Garros in June, Zverev tore several lateral ligaments in his right foot. He didn't make his Tour debut until the United Cup last month. The World No. 12 refused to give up against Varillas in his third match of the year as he battled to a four-hour victory.