Mats Hummels has told Erling Haaland that 'the grass is not always greener on the other side' as the Borussia Dortmund veteran claimed his Norwegian team-mate would be better served staying put with BVB.
The Bundesliga outfit held onto their star man last summer amid interest from a host of clubs across the continent, including Man City, Man United, Chelsea, Real Madrid and Barcelona.
City have already been linked with a swoop for the 21-year-old next summer, when his £64million exit clause kicks in, amid reports that attention has turned to Haaland after failing to sign Harry Kane last summer.