Treble winners Manchester City have completed the signing of Croatian midfielder Mateo Kovacic from Chelsea, according to transfer expert Fabrizio Romano.

Romano said: “Mateo Kovacić joins Manchester City from Chelsea, fee agreed and done deal — here we go! Agreement between clubs just reached for £30m fee.

“Personal terms agreed two weeks ago, Kovacić only wanted Man City. Medicals in the next days. New midfielder for Pep.”

Romano added: “More exclusive details on Kovacić deal. Understand Manchester City will pay a guaranteed fee of £25m to Chelsea.

“£5m will be also included in add-ons to be activated only if/when Man City will win titles — not player’s performances. Pep has his new midfielder. Here we go.”