The injury occurred while Saim was fielding, and subsequent MRI scans conducted on Friday afternoon confirmed the fracture. The affected ankle has been immobilized with a medical moon boot to aid recovery.

Left-handed opening batter Ayub made a sparkling 101 off 94 balls in a Pakistan total of 308 for nine.

Pakistan needed 18.2 overs to score 148-0 and ensure victory after Zimbabwe, who won the toss and chose to bat, were bowled out for 145 in 32.3 overs.

All-rounder Mehedi Hasan Miraz said that a fiery first hour from the Bangladesh bowlers on Day 5 of the first Test against Pakistan in Rawalpindi can create an unlikely opening for the Tigers in a contest that seemingly is heading towards a draw.

While much of Pakistan's fortunes at the T20 World Cup will rest with Babar and reliable lieutenant Mohammad Rizwan, Ponting believes there is a young batter at the top of their batting order that might cause a surprise.