Mumbai. Riding on explosive half-centuries from Ryan Rickelton and Rohit Sharma, the Mumbai Indians opened their winning account in the Indian Premier League, defeating the Kolkata Knight Riders by 6 wickets in a match held on Sunday.Mumbai successfully chased down Kolkata's massive target of 221 runs in 19.1 overs, losing 4 wickets with 5 balls remaining.Chasing the challenging target of 221, opener Ryan Rickelton played the highest score of 81 runs for Mumbai. He laid the foundation for the victory with aggressive batting, scoring 81 off just 43 balls. He was excellently supported by fellow opener Rohit Sharma, who played...