Rogic joined Scottish side Celtic from Australian club Central Coast Mariners in January 2013 for a transfer fee reported by The Telegraph to be worth £400,000.
Mooy plays with the former Central Coast Mariners midfielder for the Australia national football team.
The 27-year-old central midfielder spent the 2016-17 season on loan at Huddersfield from Manchester City before signing a permanent contract with the Terriers in the summer of 2017.
According to Sky Sports, Huddersfield paid City an initial transfer fee of £8 million in order to secure the services of Rogic on a permanent contract.
Mooy played with Rogic for Australia in their 2018 World Cup qualifier against Syria on Tuesday.
After the match, the former Western Sydney Wanderers and Melbourne City central midfielder told ESPN FC about Rogic: “It’s good to play with Tom. He is a great player and great talent.”