Europe's biggest clubs are on red alert after David Alaba has admitted he's considering his options at Bayern Munich.

Manchester City, Real Madrid and Barcelona have all made attempts for the Austria international in recent years.

And with his current deal coming to an end in 2021, Alaba admits it could be time for a change.

The 27 year-old told Sport1: "I can imagine the two possibilities: staying here or taking a different path.

"At the moment, however, we have goals here and I want to achieve them with Bayern Munich."