The Spanish giants will make a move for Defour if they fail to sign Xabi Alonso from Liverpool, according to Marca.
Defour has also been linked with Everton, Arsenal and Manchester United.
Liege have slapped a €20million price tag on their club captain, according to reports.
Director General Pierre Francois recently stated: “The player is not for sale. We are proud of offers for our important player, but we are not going to change our idea.”
