Chelsea striker Romelu Lukaku has questioned Arsenal and Germany playmaker Mesut Ozil's decision to leave Real Madrid.
Ozil left Madrid last summer for £42.5m, and after an impressive start in English football lost form as Arsenal lost control of the Premier League, having led the pack for the first half of the season.
Ozil has also come in for criticism for his performances at the World Cup with Germany, but Lukaku took to Twitter to question why the former Werder Bremen star ever left the Santiago Bernabeu.
He said: "No dissrespect to Arsenal who is also a big club but i don't understand why ozil has left real madrid.... I guess will never know.."
Lukaku is reportedly a £20m target for Tottenham Hotspur.
