Tensions rose between English batsman Joe Root and Wahab when the drinks break was taken, with the England batsman seen visibly fumed at the bowler. The suggestion, from Root’s gesture, was that Wahab had trodden on the ball and subsequently pointed this out to the on-field umpires.

According to Guardian, Wahab explained that he could not pick it up due to sweaty palms.
It is learnt that neither the match refree nor the umpires asked Wahab for any explanation.
Wahab Riaz had been instrumental in the first innings after he picked four key wickets to set up the match for Pakistan.