Huddersfield Town have completed the permanent signing of Aaron Mooy from Manchester City on an £8m deal which could rise to £10m.
Town have paid a guaranteed record fee of £8m to Manchester City for the Australian international, with additional contingencies that could see the fee go up to £10m.
The 26-year old was a key figure for the Terriers as the team gained promotion to the Premier League for the first time via the play-offs, scoring four times and grabbing seven assists for David Wagner's side during a season-long loan.
Mooy now has six goals in 28 caps for Australia's senior side, but no work permit is required as he holds a Dutch passport through his mother's heritage.
He has signed a contract until 2020, with Huddersfield having the option to extend that deal by a further season.
"Everybody who has watched our team in our promotion season knows how huge it is to have Aaron back at the club as we enter the Premier League for the first time," said manager David Wagner. "I'm sure our fans will be very happy to see him back.
"As I said many times last season, Aaron was right at the heart of our team. When he played well, we usually played well - and won.
"His performances for us understandably brought a lot of interest in him this summer, so it is a big statement that Aaron wants to return to us.
"I think he understands that playing so regularly for us at a good level improved his game too and now he has the chance to be a regular in the Premier League; something that is very exciting for every player."