The BCCI in a release said: "Dhawan had suffered a deep cut on his left knee during a Syed Mushtaq Ali Trophy game against Maharashtra in Surat and was ruled out of the ongoing T20I series. The BCCI medical team feels that while Dhawan's stitches are off and his wound is healing gradually, he still needs some more time before he regains full match fitness."
It was expected that the 34-year-old Dhawan would recover from the injury but it seems more serious than what was apprehended.
Dhawan sustained a deep gash on his knee during a Syed Mushtaq Ali Trophy game and was subsequently ruled out of the three-match T20 series where Sanju Samson came in as a replacement.
Mayank's name has been doing the rounds for a while and was even brought into the team as a replacement during the 2019 World Cup in England and Wales. The opener's form in the Test arena is also something that has worked in his favour.
India's squad for 3 ODIs: Virat Kohli (C), Rohit Sharma (VC), Mayank Agarwal, KL Rahul, Shreyas Iyer, Manish Pandey, Rishabh Pant (WK), Shivam Dube, Kedar Jadhav, Ravindra Jadeja, Yuzvendra Chahal, Kuldeep Yadav, Deepak Chahar, Mohammed Shami, Bhuvneshwar Kumar