Rahane blasted a 104-ball 103 -- studded with two sixes and 10 boundaries -- to power India to 310-5 against the West Indies in the rain-truncated second one-dayer here.
"Jinx (Rahane) has been a part of the ODI set-up for a while and we all felt he had a great potential at the top of the order. He is always there as the third opening batsman," Kohli told reporters after India notched up a 105-run win.
"I think he has started taking a lot less pressure on himself and has begun enjoying his game more. He can only go up from here and improve in this format," he added.
Kohli said the role which Rahane plays lends balance to the side.
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"He can be that floater for us in the middle order. He might allow you to play an extra bowler in a big tournament like the 2019 World Cup. There are very few people who can perform two roles for the team. He can open and he can play in the middle-order.
The young Kuldeep Yadav scalped three wickets in his second ODI to help India restrict West Indies to 205-6 and Kohli described the spinner as a lethal bowler.
"His cross seam deliveries turn both ways. I have faced him in the IPL. He's quite amazing with what he does with the bowl and especially on dry wickets like it was today, he becomes even more lethal. Credit to him for putting up such a performance," he said.
Talking about the overall team composition, Kohli said: "For us as a team, it's about doing the things right that we can do right, execute our skills to the best of our potential and regardless of how the opposition reacts, we want to do our things right, stay committed on the field be it batting, bowling or fielding."
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