Cameron Green has credited his Australia team-mates with keeping him grounded after a maiden Test five-wicket haul followed his record-breaking IPL payday.

The all-rounder became the most expensive Australian player in competition history when he was sold for 17.5 crore (£1.75million) to Mumbai Indians, trailing only England's Sam Curran (18.5 crore, £1.85m) overall.

Green followed up his giant fee with a blockbuster red-ball performance to reinforce his credentials on Monday as well, with a five-for on the first day of the second Test against South Africa at the MCG.

But Green acknowledged he was yet to feel as if he had lived up to his price-tag, while thanking his team-mates for ensuring his feet stay earthbound.

"To be fair, I think I didn't do much to kind of earn that," he said. "I just put my name into the auction, and it just happened.

"It doesn't change who I am or how I think and all the confidence I have in my cricket. Hopefully, I didn't change too much.

"The players [here] can bring you back down pretty quickly. It's a good group that we've got at the moment. Everyone gets around you when they need to and can bring you back pretty quickly when they want to.

"I think everyone was focused on Boxing Day. It's a fixture that you point out at the start of the year, and you look forward to, so now that takes your focus 100 per cent."

Green's effort with the ball could be essential for Australia going forward, after Mitchell Starc suffered a finger injury while fielding on day one.

The fast bowler faces a wait to discover if he will be able to take part in the rest of the Test match against the Proteas.