Kolkata Knight Riders have won the toss and decided to field against Kings Eleven Punjab at Mohali today.Kolkata are currently second in the 8-team points table behind leaders Mumbai Indians. They have 16 points, with 8 wins in 12 games. A win today will help Kolkata consolidate their position in top-two.Punjab, on the other hand, are fifth with 10 points from 11 matches and are still in contention for a place in the play-offs. They have to win all of their remaining three games to seal a berth.Mumbai is the only team to have qualified to the play-off stage. Royal Challengers Bangalore, Delhi Daredevils and Gujarat Lions are out of the contention.