Celtic have completed the signing of Massimo Donati from AC Milan for a fee of nearly €6 million (£3m).

The 26-year-old midfielder has agreed a four-year deal with the Scottish champions.

Donati will undergo a medical in Glasgow next week, having jetted into Glasgow earlier in the week to thrash out the move to Parkhead.

Donati is Celtic manager Gordon Strachan's fourth summer signing, as the Hoops aim for their third successive title.

Scott Brown joined from Hibernian in a €8.7m, while Motherwell and Hibs strikers Scott McDonald and Chris Killen were snapped up on Bosmans.

Donati began his career at Atalanta before a €19.9m deal took him to the San Siro in 2001.

In recent seasons he has had loan spells at a number of Serie A clubs, including Parma, Torino and Sampdoria, and last season was a regular for Atalanta.

Celtic have reportedly beaten off strong competition from Palermo, Sampdoria and Atalanta for the signature of Donati and his capture is seen as a coup for the Glasgow giants.

A Celtic spokesperson said: "We are delighted that Massimo has signed for the club.

"He is a player of real quality and we're sure he will be a great addition to our squad."