nabil fekir 's goal and alexandre lacazette 's penalty in the first half put les gones in control and guingamp 's hopes of a comeback took a blow when christophe kerbrat was given his marching orders before half-time .
clinton n'jie struck just after the hour to put hubert fournier 's side three goals to the good , meaning claudio beauvue 's effort 10 minutes from time was only a consolation .
alexandre lacazette celebrates after scoring a penalty for lyon to send them top of ligue 1 on saturday .