Tony Watt will join Standard Liege tomorrow in a £1.2m deal.
The striker spent last season on loan to Lierse and made a big impact in the Belgian League.
Standard Liege made their interest known to Celtic at the turn of the year with a deal being pushed through today.
Watt is expected to fly to Belgium early tomorrow to undergo a medical and complete the deal bringing to an end his brief but eventful career at Celtic.
Standard opened their league campaign on Friday with a 3-0 win over Charleroi and are looking to have Watt added to their squad in time to play Panathinaikos in a Champions League qualifier on Wednesday. Last season they finished in second place, two points behind Anderlecht.
After impressing at Airdrie he earned a £100,000 move to Celtic in January 2011 after spending time at Celtic and Liverpool on trial.
In April 2012 he made his first team debut, scoring twice at Fir Park as a substitute and went on to make three more appearances that season.
With the Gary Hooper-Anthony Stokes partnership well established first team chances were limited but in November 2012 he made his presence felt on the world stage with a goal against Barcelona that earned Celtic a famous win.
Despite that strike he wasn’t given another opportunity to play as a striker again under Neil Lennon and missed out completely on a place in the squad that won the 2012 Scottish Cup Final against Hibs at Hampden.
At the end of the 2013 summer transfer window he was sent out on loan to Belgian side Lierse but despite making an impact on the pitch fell foul of Stanley Menzo who finally banished him to the reserves.
Ronny Deila enquired about taking him on loan to Stromsgodset but was prevented by red tape, now the new Celtic manager has decided to cash in on the striker just days before a crucial Champions League tie with Legia Warsaw.
In 13 starts and 21 substitute appearances Watt scored 8 goals for Celtic.
