Gros Islet (St Lucia) (PTI): He was off-colour during the IPL and Twenty20 World Cup, but Ishant Sharma looked impressive in his short spell on Sunday and India skipper Mahendra Singh Dhoni feels a disciplined approach coupled with little assistance from the pitch did the trick for the pacer.

Handed with the responsibility of opening the attack in the washed out fourth and final ODI against West Indies here today, Ishant was bang on target from the word go and sent packing hosts' captain Chris Gayle for duck in the second ball of the innings.

He gave away just 17 runs in his four overs which earned him the accolades of his captain.

"He (Ishant) was concentrating more on what he needs to do rather than looking at the batsman. Today he was bowling in the right areas and there was a bit help in the pitch for the fast bowlers.

"In the earlier matches he was bowling one change but today he looked a totally different bowler with the new ball," Dhoni said off Ishant after India won the four-match series 2-1.

"Throughout the series if you see we batted first because there was something on offer for the fast bowlers," he added.