"There is still a long way to go in the tournament, but I have certainly enjoyed my partnership with Dwayne Smith, 'The Doctor'. It is great to bat with him because he is so powerful and has a lot of options in his batting," McCullum said. (Agencies)
"He is a very intelligent cricketer as well. We seem to have a good rapport and get a good partnership going. It is nice to be able to contribute, and personally too I am enjoying my time with CSK so far."
Smith scored three fifties in five matches and McCullum hit two half-centuries to currently lie at the second and third position in the most runs list respectively.
Asked if they form the most explosive pair, McCullum said: "So far we have done well. We may not be the most explosive pair, but in terms of how we have been playing, we have managed to give our team a good start in most games.
"We are pretty lucky that both of us hit the ball and hit it in different areas. I saw a comment from our captain, MS Dhoni, earlier in the week when he said that Smith and I don't compete against each other but we complement each other, which is nice to have in an opening partnership.
"We also have so much power to follow that we both have the confidence to play positively," he was quoted as saying by the official website of IPL.
In the past editions, it was the opening pair of Michael Hussey and Murali Vijay, which served Chennai well and McCullum feels it will be tough to replace them.
"Michael Hussey did outstandingly well for the Chennai all these years and those are tough shoes to fill for the two of us at the moment. Hussey has served this franchise incredibly well and now we have this opportunity to do the same. We have started well and there is still long way to go,” he said.
"There is still a long way to go in the tournament, but I have certainly enjoyed my partnership with Dwayne Smith, 'The Doctor'. It is great to bat with him because he is so powerful and has a lot of options in his batting," McCullum said.