Babar Azam is congratulated by Azhar Ali of Pakistan on scoring a half century during Day 2 of the First Test between Pakistan and West Indies at Dubai International Cricket Ground on October 14, 2016 in Dubai. Francois Nel / Getty Images
Pakistani batsman Azhar Ali salutes as he celebrates after scoring double century (200 runs) on Day 2 of first day-night test between Pakistan and the West Indies at the Dubai International Cricket Stadium in the Gulf Emirate on October 14, 2016. Azhar would finish with 302 runs, not out. Aamir Qureshi / AFP
Miguel Cummins of West Indies fields during Day 2 of the First Test between Pakistan and West Indies at Dubai International Cricket Ground on October 14, 2016 in Dubai. Francois Nel / Getty Images
West Indies spinner Devendra Bishoo, right, with teammates after taking the wicket of Pakistani batsman Asad Shafiq on Day 2 of first day-night Test between Pakistan and the West Indies at the Dubai International Cricket Stadium on October 14, 2016. Pakistan, resuming at 279 for one, reached 391 for two at tea on the second day of the first day-night Test against West Indies in Dubai. Aamir Qureshi / AFP
Pakistani batsman Azhar Ali, right, hugs with captain Misbah-ul-Haq as he celebrates after scoring triple hundred (300 runs) on Day 2 of first day-night Test between Pakistan and the West Indies at the Dubai International Cricket Stadium on October 14, 2016. Pakistan declared their first innings at 579-3. Aamir Qureshi / AFP
Pakistani batsman Azhar Ali, right, celebrates after scoring double century (200 runs) on Day 2 of first day-night test between Pakistan and the West Indies at the Dubai International Cricket Stadium on October 14, 2016. He would finish with 302 runs. Aamir Qureshi / AFP
Shannon Gabriel of West Indies appeals during Day 2 of the first Test between Pakistan and West Indies at Dubai International Cricket Stadium on October 14, 2016 in Dubai. Francois Nel / Getty Images
Pakistani batsman Babar Azam, right, plays a shot on Day 2 of first day-night Test between Pakistan and the West Indies at the Dubai International Cricket Stadium on October 14, 2016. Aamir Qureshi / AFP
West Indies bowler Shannon Gabriel, right, delivers the ball next to Pakistani batsman Azhar Ali, left, on Day 2 of first day-night Test between Pakistan and the West Indies at the Dubai International Cricket Stadium on October 14, 2016. Aamir Qureshi / AFP
West Indies bowler Shannon Gabriel, top right, delivers the ball next to Pakistani batsman Azhar Ali, left, on Day 2 of first day-night Test between Pakistan and the West Indies at the Dubai International Cricket Stadium on October 14, 2016. Aamir Qureshi / AFP