Spain's Rafael Nadal celebrates after winning the fourth set against Germany's Alexander Zverev during their third round match at the Australian Open tennis championships in Melbourne, Australia. Pic/PTI

Melbourne: Spanish superstar Rafael Nadal survived a marathon third-round battle against Alexander Zverev at the Australian Open tennis tournament, prevailing with a 4-6, 6-3, 6-7(5), 6-3, 6-2 win here on Saturday.