Zaheer had injured his calf in the second innings of the thriller against Madhya Pradesh during which he took five wickets. The injury recurred in the next match - Mumbai's last group game against Gujarat - on the first day itself after he had bowled 17 overs. Though he came out to bat later, he didn't bowl in the second innings at all.
The injury ruled him out of the quarter-final against Baroda, a match that ended in a draw but Mumbai won on first-innings lead after they scored 645 and bowled out Baroda for 271.
Mumbai squad: Ajit Agarkar (c), Aditya Tare, Sachin Tendulkar, Ankeet Chavan, Wasim Jaffer, Nikhil Patil (Jr), Suryakumar Yadav, Javed Khan, Dhawal Kulkarni, Sushant Marathe, Kaustubh Pawar, Shardul Thakur, Abhishek Nayar, Vishal Dabholkar, Hiken Shah