New Delhi [India], Feb 15: Former South Africa all-rounder and T20Is specialist Jacques Kallis believes India skipper the run-machine aka Virat Kohli may need to tone down his on-field aggression. According to the iconic cricketer Kohli's aggression works for him but his team may not necessarily benefit from it. "He has been aggressive and I think it works for his game. But it maybe an area he needs to look at... the way it works for him he has got to see if it works for his team. It might be an area to tone it down a little bit. It certainly brings out the best in him and I think he should not change too much for him. He bats well when he is aggressive within himself," said Kallis.

The 42-year-old applauded Kohli for his passion and added that 29-year-old will curb down on his aggressive instincts as he grows older. "As a leader sometimes you cannot always be as aggressive as he is, that is an area he will work on, he is still young in his captaincy. I am sure he will chill out a little more as he gets a little bit older. But he is obviously very passionate and that is nice to see," Former All-rounder of South Africa Jacques Kallis.

Virat Kohli led India to their first-ever series win on South African soil after his team beat the hosts by 73 runs in the 5th ODI. "It's a wonderful feeling to have created some history," said Kohli, who praised what he described as a "complete performance" by his team.