Cape Town - Mathieu Debuchy could be open to leaving Newcastle United when the World Cup is over after admitting he misses European football.The France international, who started in his side's Group E victories over Honduras and Switzerland, joined the Magpies in January 2013 from Lille, where he had just won the domestic double.Debuchy also played in the UEFA Champions League for Les Dogues and he has confessed to yearning for those European nights again.The 28-year-old right-back still has four years left on his contract at St James' Park and he acknowledges the fans provide an "incredible" buzz on Tyneside, but that might not be enough to keep him at the Premier League club.He told the media at Les Bleus' training base in Brazil: "It's really incredible to play in that atmosphere. Having said that, I miss European football, and the Champions League in particular."For the moment, I'm concentrating on the World Cup - and we'll see about the rest afterwards."Debuchy could be rested for his country's final group game against Ecuador on Wednesday, with their qualification for the last-16 all but assured, meaning a first start in the tournament for Bacary Sagna. But the Toon defender said: "Personally, I want to play. It's the World Cup, we've dreamed about this. I want to play every game."I don't feel like I'm first-choice. I ask questions of myself after every game. When I'm called upon, I try to give my all."