Pakistan skipper Misbah-ul Haq broke the Test record for the fastest fifty and equalled the quickest century feat barely three weeks after withdrawing from the one-day side for poor form and slow batting.
The 40-year-old smashed a 21-ball fifty and a 56-ball hundred on the fourth day of the second Test, which put his team in sight of a 2-0 series win, their first series win in 20 years against Australia.
Misbah said it was a great honour for being bracketed with West Indian legend Viv Richards who hit a 56-ball hundred against England at Antigua in 1986.
"I think it's the biggest honor for me," said Misbah.
"I am nowhere near to him but scoring a hundred in a similar number of deliveries is really something that I will remember the whole of my life."
The right-hand batsman broke South African Jacques Kalli's record of the fastest Test fifty, which he made off 24 balls against Zimbabwe at Cape Town in 2004.
It proved to be a Super Sunday for the Pakistan skipper, often castigated by experts and fans alike for his "tuk, tuk style of batting.
Misbah said he didn't know about the record until a team-mate told him.
"Somebody ran to me when I was on 80 informing me that I was just ten balls away from making a record. "But in either case I was trying to hit every ball and that really couldn't make any difference.
But it is always good to have these sort of records as it gives you some sort of satisfaction and scoring 100 is always special for a batsman in a Test and nothing is better than that."
Misbah felt his quick scoring will help in next year's World Cup, which Australia and New Zealand co-host in February-March. "It was a really important situation for me considering what happened in the recent past and especially ahead of the World Cup," he added.