Why was Imam-ul-Haq left out of the third match against New Zealand? Babar Azam told

Pakistan has won the toss and decided to bat against New Zealand, vice-captain Shan Masood has entered in the third and decisive ODI.
According to the details, national team captain Babar Azam said that Imam-ul-Haq is not playing today due to a minor injury, Shan Masood and Hasnain have been included in the team, the pitch is looking good for batting, to score more runs. Will try, satisfied with his bowling.
The national team includes Fakhar Zaman, Shan Masood, Babar Azam, Muhammad Rizwan, Haris Sohail, Agha Salman, Muhammad Nawaz, Muhammad Wasim Jr., Osama Mir, Muhammad Hasnain and Haris Rauf.