It is learned that Iyer reported a stiff back immediately after the final ODI of the series against Sri Lanka on Sunday. Keeping in mind he is part of the Test squad for the series against Australia in February, BCCI's medical staff decided to ask him to head to the National Cricket Academy in Bengaluru as a precautionary measure. As it stands Iyer, who reached NCA on Monday, is scheduled to rejoin the India squad in Nagpur for a preparatory camp ahead of the first Test against Australia on February 9.

His replacement in the ODI squad, Patidar, is yet to make his international debut. Patidar, 29, was part of the squad for the ODI series in Bangladesh last December but did not get a game. He has 1648 runs in 51 List A games at an average of 34.33 and strike rate of 97.45.

India's first ODI against New Zealand is on January 18 in Hyderabad, followed by games in Raipur (January 21) and Indore (January 24).

India's updated ODI squad against New Zealand
Rohit Sharma (capt), Shubman Gill, Ishan Kishan (wk), Virat Kohli, Suryakumar Yadav, KS Bharat (wk), Hardik Pandya (vc), Rajat Patidar, Washington Sundar, Shahbaz Ahmed, Shardul Thakur, Yuzvendra Chahal, Kuldeep Yadav, Mohammed Shami, Mohammed Siraj, Umran Malik.