I am suprised everyone here is pointing DLS as the reason why GT lost the match. I am confident almost none have watch the match. DLS was the reason why CSK was struggling to chase the target in the last two over.
If you haven't watch the live match go on and watch the highlights. It is available for free on Jio Cinema. DLS was a benefit to GT as per my opinion as in 15 overs it is hard to chase a target of 170+. CSK won because of Sir Jadeja and not because of MSD or any other player. No one expected he would score 10 runs in the last two balls.
Especially Jadeja played the most role in this final match as he was an old experienced player. Due to which he managed to score ten runs in two balls and in the last moment of the match the entire gallery audience was surprised and they thought that Gujarat would win. But this dream of Gujarat was broken by the last two balls and Chennai collected the IPL cup for the fifth time.
I heard in a news media that this was the last match in Dhoni career. Because of his age, his followers believed that this IPL season was the last win of his career. But Mahindra Dhoni said that I want to play another match because of the love of the audience. There are few experienced all-rounders like Dhoni so he would like to use his intelligence and get another IPL season in his career.
Dhoni is still a very capable player. We all already saw how well he has played in this IPL season. His hands are still the fastest for any wicketkeeper in the world in my opinion. He can obviously play one more if he wishes. Actually, I will say that as long as he can contribute to the team well and is not a burden on the team he can play. So, I don't think it is a problem if he decides to play one more season in the IPL. As long as he performs it is going to be entertaining.