Is Rohit Sharma's form a concern for Mumbai?

And should RCB make use of Shahbaz Ahmed's left-arm spin? Ravi Shastri and Piyush Chawla tackle the big questions Subscribe to ESPNcricinfo: http://bit.ly/1jnGh6S Get our apps: Android: http://bit.ly/2vFVfzX iOS: http://apple.co/2vGj8rg Website: http://www.espncricinfo.com/ You can also find us at:   / cricinfo     / espncricinfo     / espncricinfo