Kolkata, April 20 -- Abhishek Nayar has rejoined the support staff of Kolkata Knight Riders in a role yet to be specified by the IPL champions. Nayar was previously the assistant coach in a batting role, and has been involved in different capacities with players such as Rohit Sharma, Dinesh Karthik, Shreyas Iyer and Venkatesh Iyer. He linked up with the team on Saturday and straightaway attended the nets session at Eden Gardens. KKR play Gujarat Titans on Monday....