Edinson Cavani scored twice as Paris St-Germain beat Guingamp to go within three points of Ligue 1 leaders Monaco. The striker, who has now scored 42 goals in 41 games this season, headed off the bar in the first half before setting up Angel di Maria's opener. Cavani scored the second after finding space in the box and added another after beating the offside trap and sprinting away from Guingamp's defence. Blaise Matuidi swept home an injury-time fourth from Lucas Moura's cross. Monaco had gone six points clear on Saturday with a 1-0 win at Angers thanks to Radamel Falcao's goal.