Defending champion Rafael Nadal admitted he had been far from perfect after grinding down a man 15 years his junior to kickstart his bid for a 23rd Grand Slam title on Monday. 

The Spanish top seed unleashed some of his trademark hammer forehands, but also made 46 unforced errors, before defeating Britan Jack Draper 7-5, 2-6, 6-4, 6-1 at the Australian Open. It put him into the second round for a 17th time and stretched his win-loss record at Melbourne Park to 77-15. He will next play Mackenzie McDonald, who beat fellow American Brandon Nakashima in a five-set thriller.