Punjab are still in hunt for a quarterfinals with a game to go tomorrow. They have 12 points from three wins in five games and are placed fourth in Group B behind runaway leaders Kerala (20 points), second placed Jharkhand (16 points) and Saurashtra, who are also on 12 points but have better net run rate.
Top two teams from each of the four groups qualify for the quarterfinals.
Yuvraj's half century was timely ahead of the T20s in Australia. He hammered seven fours and a six though it was not enough for a positive outcome for Punjab.
Sanju on the other hand was in sparkling form and struck six fours and three sixes in what was a highly entertaining innings.
Punjab captain Harbhajan Singh had a decent outing with the ball, taking two wickets for 19 runs in four overs.
Brief scores: Punjab 135/7 in 20 overs (Yuraj Singh 54; P Prasanth 3/11).
Kerala 139/5 in 19.5 overs (Sanju Samson 72, Harbhajan Singh 2/19).