Steven Smith admits to 'not walking' after nicking ball at 97

When Pakistan lost the toss against Smith, they should have realized that it wasn't going to be their day. The Aussie had lost six consecutive tosses before the match. His luck continued to shine as he was dropped on 53 by wicketkeeper Sarfraz Ahmed when he edged an Azhar Ali delivery.

But the most surprising decision came in the 82nd over when Smith got a slight touch on an Amir delivery and the catch was gobbled up by Sarfraz However, Smith could not believe his luck when none of the Pakistani players appealed for a decision.

"I was very surprised, it was pretty loud, obviously I was on 97, there was a fair bit going on in the crowd. It was pretty loud, but yeah, I did nick it, and no one went up so I wasn't going to walk," Smith told ABC radio.

"Yeah, I didn't look behind. Not sure why, I just played the ball and it was a bit bizarre that nothing came of it," Smith added when asked if he had a good poker face.

At the end of the over, Smith was seen talking to umpire Ian "Gunner" Gould about the decision. 

"I told 'Gunner' Gould at the end of the over: 'I'm pretty sure I hit that one last over.' "He said: 'I'm pretty sure you've said that to me before. I reckon it was out here as well.' So it's happened before, you take the good with the bad," Smith replied to a question about the conversation with the official.

Smith went on to complete his 15th Test century helping Australia finish their first innings with a score of 429. In reply, the Pakistan batting collapsed to 97/8 by the end of Day 2 in the first Test at Brisbane.