Melbourne: Yuvraj Singh's 15 wickets in the 2011 ICC Cricket World Cup was one of the major factors which contributed to Mahendra Singh Dhoni lifting the coveted trophy but the Indian captain says last edition's 'Player of The Tournament' is no longer as effective as he used to be in the current set-up.

Dhoni points to the change in field restrictions (with only four fielders outside the 30-yard circle) being precisely the reason why India lost "Yuvraj Singh, the handy left-arm spinner."