Celtic have announced the signing of Nadir Ciftci on a four-year contract from Dundee United.

The Scottish Champions had a third bid for the Turkish striker accepted earlier this week and he will now be able to join the squad for Champions League qualifier against Stjarnan next Wednesday.

The Hoops announced the signing on their official website: "Celtic are delighted to confirm the signing of striker Nadir Ciftci.

"The forward has arrived from fellow Scottish Premiership side Dundee United, putting pen to paper on a four-year deal at Celtic Park."

The 23-year-old is Celtic manager Ronny Deila's fourth signing of the summer transfer window following in the footsteps of Dedryck Boyata, Saidy Janko and Logan Bailly.