The star performers with the bat in Australia's one-day series against India have all been 30-somethings.

Rohit Sharma, 31, cracked a ton in the series opener.

Shaun Marsh, 35, and Virat Kohli, 30, followed suit in game two.

Then there's 37-year-old MS Dhoni who calmly steered India to victory in Adelaide on Tuesday night with an unbeaten 55 from 54 balls, after his half-century in game one.

Australia coach Langer says such performances underline his long-held belief about short-form cricket.

"I have always said ... it's actually an old man's game," Langer said.

"It's not a young man's game because you're under so much pressure and that is where the experienced heads usually prevail.

"We see that a lot actually in white-ball cricket.

"India and England at the moment have got some really senior players who have a real impact on their team.

"It's usually the senior heads who make such an impact on great teams."

Australia's Marsh, on a hot ODI streak with four tons from his past eight games, concurred.

"I don't think age is a barrier," he said.

"The (older) guys are performing well, that's all that matters, making sure you're body is in good nick."

Australian Associated Press