Last time Australia played three debutants in the same Test was quite recent at Adelaide against South Africa in November 2016 - Matt Renshaw, Peter Handscomb and Nic Maddinson.
After winning the toss and electing to bat on a road of a pitch, Pakistan are 0-199 at tea on day one with Hafeez unbeaten on 113 and Imam-ul-Haq 75 not out.
The opening wicket produced 205 runs with Imam-ul-Haq who scored 76.
A brilliant 150-run partnership between Haris Sohail and Asad Shafiq put Pakistan in a very strong position at tea on the second day of the first Test against Australia in Dubai.
After resuming on 255-3, Pakistan lost only nightwatchman Mohammad Abbas (1) in the morning session as Sohail and Shafiq blunted the visiting attack.
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Sohail did to get to three figures though, hitting a six off spinner Jon Holland before cutting him to third man for two to complete his century. He was given a life on 74 when Mitchell Marsh could not hold on to a tough chance on the boundary off the bowling of Holland having covered some 20 yards in the outfield. Hafeez, who turns 38 later this month, was thrilled to be able to aid the team on his comeback.
On a lifeless wicket in Dubai, Australia needed every bit of luck to break down Pakistan's patient, time-consuming innings.
Receiving little assistance from a deck nearly entirely devoid of grass, Mitchell Starc and recalled workhorse Peter Siddle combined for just eight overs before Lyon was brought into the attack.
Australian skipper Tim Paine was left stunned after an lbw review went the way of the home side despite the ball-tracking system showing Nathan Lyon's delivery making clear contact with the leg stump. The second Test starts in Abu Dhabi on October 16.