Mumbai, July 29 -- The West Indies tour will mark the beginning of an incredibly tough competition for the much-debated No 4 slot in limited-overs format. And Shreyas Iyer, who is back in contention along with Manish Pandey, Rishabh Pant and even Shubman Gill, faces a tough ask. In an interview, the aggressive Mumbai batsman says he is ready for the challenge as India look for a long term solution to fix the middle order....