The deal was finalised after the Paisley side finally managed to hammer out a compensation deal with Mooy's former club, Bolton Wanderers, and allow the Aussie to make the move north.

Aaron's deal will see him ply his trade with St Mirren until the end of this season with the club having the option of extending his deal by a further season.

The attacking midfielder had been on trial with the Saints and had impressed in bounce games over recent weeks.

Mooy - who also holds a Dutch passport, giving him access to European leagues - came through the youth system of Bolton Wanderers but this year rejected a new contract there as he wanted regular first team football.

The former Sydneysider represented his country last year in the FIFA Under-20 World Cup in Egypt, playing in the 3-0 defeat against Costa Rica and scoring Australia's only goal in the 3-1 loss to Brazil

Mooy will wear the squad number is 33 and will go straight into the squad for tonight's game against Hearts at Tynecastle.

After completing the protracted deal, Mooy told the he was relieved it is now all signed and sealed.

"I'm really pleased that we finally got it done as it has been a long wait, but I'm really happy now," he told the club's website.

"I have a great deal of respect for manager, Danny Lennon and everybody else here, I love the set up here and I know that I've been given a great opprtunity by St Mirren.

"We all know that the club is at the wrong end of the table but the points gap is minimal.

"From my point of view that isn't a concern as in my time here on trial and being in amongst the squad I know there is enough quality here to get us up the league."

The youngster isn't taking anything for granted as he knows he must earn the right to play and if he does he is sure that he will be given the platfrom to show his abilities.

He added: "My focus is to work hard with the ambition of getting into the starting XI which I feel I have a good opportunity of doing here and hopefully I can go on to cement my place in the squad.

"I think technically I'm pretty good, my passing and touch are good and I've scored a few goals but for me I'm here to help the team as much as I can.

"I'll be fighting to get a place in the team and if I can get out to play in games I'll hopefully be able to show everybody what I can do."

Photograph courtesy of