"I know, you were closing your eyes to be more focused on what I was saying", he added, continuing to make light of the embarrassing situation.
Nadal won the Australian Open in 2009 and is bidding to become the first man in the Open era to win each Grand Slam on two or more occasions. "And that's what I need today".
The first meeting between the 17-times Grand Slam champion, a victor at Melbourne Park in 2009, and Australian wildcard Duckworth, who is ranked 238 in the world, always had the potential to be an uneven contest.
The Spaniard had 38 winners and only 11 unforced errors against the luckless Duckworth, who has undergone countless bouts of foot surgery in recent years.
"I feel good. If I am not feeling good, I will not be here", he said ahead of the first Grand Slam of the year.
"I can still play, but not to a level I'm happy playing at", said Murray ahead of his evening clash in Melbourne Arena on a day when temperatures are forecast to soar to 37 Celsius (98.6 Fahrenheit).
The Spaniard then caused more chuckles as he noted: 'It's not interesting today, ' which abruptly woke the journalist from their slumber.
‘Uri’ Box Office: Vicky Kaushal-Starrer Earns Rs 20 Crore
Uri has been released along with Anupam Kher starrer The Accidental Prime Minister which will disperse their audience. Besides Vicky Kaushal , Uri: The Surgical Strike features Yami Gautam , Paresh Rawal and Kirti Kulhari in key roles.
"He went on court, you know - it's not a negative point. Believe me, he went on court probably doing a thing that works well for him, and it gave him some chances - he played smart and he played well".
"So that's an important victory because it's the first victory in a while, and at the same time, because that gives me the chance to be on court again".
Boulter beat Ekaterina Makarova 6-0, 4-6, 7-6 (6), including 10-6 in the tiebreaker.
The 21-year-old Opelka, an inch taller than the 6ft-10in Isner (2.08m), broke the ninth seed's ideal 9-0 winning record against Americans at the Grand Slams in a match featuring 87 aces. "It's very hard to start after an injury - I know it very well".
"I mean, there is no time for that, I'm sorry to say", Sharapova - the 30th seed - told reporters afterwards.
Opelka will play 102nd ranked Italian journeyman Thomas Fabbiano for a place in the third round.