Removed from captaincy before the start of the 10th edition of the ongoing Indian Premier League, Dhoni so far has had a quiet tournament for Rising Pune Supergiant by his standards, scoring only 61 runs in five games.
Warne today took to twitter to back Dhoni, who has been a phenomenal limited-overs cricketer.
"@msdhoni does not have to prove anything to anyone, he's class & a wonderful player in all formats. MS is also a great captain & inspires!," Warne wrote on his twitter page.
While he is still the undisputed No.1 keeper-batsman in the limited-overs format but inconsistent form over the past year has led to debated if he is still a potent match-winner.