After playing 19 Test matches on the trot for Australia and while not setting the world alight, performing solidly enough in the First Test loss to India in Chennai where he took 3-215 in the first innings and 1-29 in the second.
Most expected Lyon to then keep his spot for the Second Test in Hyderabad and for him to likely be joined by left-arm orthodox spinner Xavier Doherty.
However, the Australian selectors threw a curve ball by dumping Lyon, picking Doherty and handing off-spinning all-rounder Glenn Maxwell his Test debut.
While there were plenty more factors in the innings and 135-run defeat in Hyderabad than solely the performance of Doherty and Maxwell, they took a combined 7-258 while Lyon sat on the sidelines and worked on improving his bowling.
The 25-year-old who has a solid 20-match Test record with 65 wickets at an average of just under 34 won't go into exactly what he has been working on during his absence from the team in Hyderabad, he remains confident he can deliver if picked for the Third Test in Mohali.
"I can't reveal all my secrets," Lyon said.
"I just have to keep putting my hand up for selection and get back in the nets, and keep training hard.
"I've been fortunate enough to have this week to have really good training sessions in the nets, and I have got a few things out of that and I'm quite happy with that. I'm confident with my skill set that I can get the job done if I am selected."
Lyon feels that he has also benefited from recent discussions he has had with Australian leg-spinning greats, Shane Warne and Stuart MacGill.
"I had a great phone call with Stuart MacGill before this Test match and I really got a lot out of that just from talking to a past Australian spinner," he said.
"I obviously had a chat to Shane Warne after Chennai as well which was fantastic."
While disappointed not to be picked to play in Hyderabad, Lyon was more focused on the outlook of the team and is confident of things turning around for the last two matches of a series that so far has been disastrous in India in what is Australia's last Test warm-up before the Ashes.
"It's always disappointing to miss out on playing a Test match for your country, but that's what the selectors and captain did with the team they picked and unfortunately it didn’t go Australia's way," he said.
"We have learned a lot from the last two Tests over here in India and we are now luckily enough to have eight days break to really get into the nets and find a way that we can really compete and hopefully turn things around for Australia."
Doherty took 3-131 in Hyderabad and Maxwell claimed 4-127, and Lyon felt both of them performed the roles asked of them well.
"I thought that both of them bowled extremely well, especially Maxy on debut," Lyon said.
"He was lucky enough to pick up four pretty big scalps there on Day 3 and I thought Xavier did his role in the team, and bowled really well. He bowled similar to Jadeja there where he was challenging the stumps so I thought that both bowled really well."