Nathan Lyon has been studying Ravichandran Ashwin closely ahead of Australia's first Test in India for four years.
Australia are back in India for the first time since their calamitous 4-0 whitewash in 2013, and come up against an India side bang in form.
Virat Kohli's Test side thrashed England 4-0 in their final series of 2016, and cruised past Bangladesh by 208 runs in their one-off encounter earlier this month - Kohli scoring a double hundred in the process.
Ashwin was Kohli's main strike bowler against both sides, taking 28 wickets in the five games with England and six in the victory over their near neighbours.
His performance against Bangladesh saw him firmly establish his place as the world's best bowler, and took him past 250 Test wickets quicker than anyone else.
The off spinner will undoubtedly pose a huge threat to Australia, but Lyon hopes watching his rival closely can help him cause similar problems to the India batting line-up.
"I've watched a lot of Ashwin," Lyon said, as quoted by cricket.com.au. "Obviously he's the number one bowler in the world and there's a reason for that.
"He's playing over in these conditions a lot, so I've spent a lot of time studying how he goes about it. Hopefully I can keep learning off him and watch him closely and try and put a few things into place.
"I'm not changing my whole action, I'll give you that little tip, but there's little things I'm trying to work on.
"Some things are going really well and some things aren't. But I'm feeling really confident and I'm looking forward to the challenge that lies ahead."
And Lyon has not ruled out opening the bowling for Steve Smith's side when the series gets under way in Pune on Thursday.
"There's a big chance I might take the new ball, but that's totally up to the captain," he added.
"I'll be warming up [for it], put it that way.
"The new ball, the harder it is - it may skid on, it may turn, it might bounce or it might not.
"There are a few different options and if I don't know if they're going to bounce then neither does Virat. We'll just have to wait and see."