Lionel Messi scores hat-trick in Barcelona victory . The Argentine scored a brace as Barca won 3-1 at Camp Nou to move within one point of leaders Real Madrid. AC Milan beaten 4-2 by Parma in Serie A. Milan unlikely to qualify for European competition next season .
Lionel Messi scores hat-trick in Barcelona victory . Messi became club 's highest ever goalscorer with 371 goals . AC Milan beaten 4-2 by Parma in Serie A. Milan unlikely to qualify for European competition next season .