Mumbai Indians defeated Chennai Super Kings by nine runs in a thrilling Indian Premier League Twenty-20 Cricket match on Saturday night in Chennai. Opting to bat first Mumbai Indians scored 148 for 6 in 20 overs. In reply, Chennai managed to make just 139 in their 20 overs.Earlier, in another match, the Rajasthan Royals beat Delhi Daredevils by 5 runs at the Feroz Shah Kotla Stadium in Delhi.In today's fixtures, Pune Warriors will take on Kings Eleven Punjab in Pune, while Sunrisers Hyderabad will lock horns with Royal Challengers Bangalore in Hyderabad .