After a flying start to their respective campaigns, both the teams have started showing some wear and tear. Mumbai have suffered successive defeats while KKR have lost three of their last four matches.
Having become the first team to make the cut, the outcome of the match won't affect Mumbai but Kolkata need to win to take their tally to 18, same as their opponents and remain in contention for a second-place finish.
Taking into account of their first-leg result, Kolkata have their lost four matches in a row against Mumbai in a lopsided 5-14 overall record. Their winning percentage of 26.31 against Mumbai is also the least among teams with a minimum of five matches.
Kolkata have the best net run-rate (+0.729) among the still-to-be-qualified teams and have virtually made the cut but still they would not like to keep it till the end for the ifs-and-buts equations to determine the final four teams.
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Sunil Narine's new-found opening slot may have been the biggest advantage for KKR but at the same time, it is often seen that the team's batting relies on the top four.
In search of a win to seal a playoff berth, KKR made a mess of a modest 168-run chase as barring opener Chris Lynn (84) none of their batsmen could contribute down the order.
The biggest letdown for KKR has been Yusuf Pathan's sorry state of form with the bat as the side is badly missing a finisher.
Manish Pandey has been going through a prolonged lean patch and KKR would desperately want him to be back among runs. Kiwi all-rounder Colin De Grandhomme has managed average performance with just four wickets and 97 runs.
In such a scenario, Gambhir may rejig the line-up or even in the batting order especially at the top by bringing either Narine or Lynn down the order to play the role of a finisher.
With two half-centuries in three matches, Mumbai opener Lendl Simmons would look to continue with the momentum while fellow Trinidadian Kieron Pollard's ominous form is not good news for the Knights Riders.
Last season, Mumbai Indians won both their matches against Kolkata Knight Riders and skipper Rohit Sharma was the Man-of-the-Match in both. It will be a big opportunity for the skipper to get back among runs before the Play-offs.
Kolkata Knight Riders: Gautam Gambhir (C), Darren Bravo, Trent Boult, Piyush Chawla, Nathan Coulter Nile, Colin De Grandhomme, Rishi Dhawan, Sayan Ghosh, Shaikb-Al-Hasan, Sheldon Jackson, Ishank Jaggi, Kuldeep Yadav, Chris Woakes, Chris Lynn, Sunil Narine, Manish Pandey, Yusuf Pathan, Ankit Rajpoot, Suryakumar Yadav, Robin Uthappa and Umesh Yadav.
Mumbai Indians: Rohit Sharma (C), Lendl Simmons, Mitchel Johnsohn, Mitchell McClenghan, Nitish Rana, Parthiv Patel, Saurabh Tiwary, Shreyas Gopal, Tim Southee, Lasith Malinga, Krunal Pandya, Keiron Pollard, Ambati Rayudu, Asela Gunaratne, Harbhajan Singh, Hardik Pandya, Jagdish Suchith, Jaspreet Bumrah, Jos Buttler, Karn Sharma and Vinay Kumar.
Match starts: 8pm IST.