Australia's David Warner scoring a century before lunch on day one of the third Test made Pakistan look foolish, according to Wahab Riaz.

Warner became just the fifth batsman to achieve the feat and the first on Australian soil as he clocked up 100 runs off just 78 balls in the first session in Sydney.

Wahab finally dismissed the Australia opener on 113 when he drew an outside edge that flew to wicketkeeper Sarfraz Ahmed.

However, the Pakistan paceman said Warner, who also claimed a ton in the Boxing Day Test, had already done the damage.

"Everybody knows Warner is an attacking player and we know where he is strong," said Wahab.

"But as a bowling unit if we keep making those mistakes and making him play on his strong area, then we look foolish.

"I think the plans were there, given by the coaches. They've been working really hard, but it's the execution of the players and so far our execution is not up to the mark."

Wahab reached stumps with figures of 2-63 from 19 overs, but Mohammed Amir (0-58) and Imran Khan (0-81) – the third different final seamer in as many Tests – were unable to find a breakthrough.

With Yasir Shah (1-132) also proving expensive as Australia reached closed on 365-3, Wahab was critical of the bowling line-up.

He added: "Everything is planned according to the track and situation and according to the games.

"Obviously, I will say, at the end of the day, it is the bowling unit that is not doing good. As a bowling unit we have let our team down really."