PSG stay on course for treble with Cup semi-final win

Soccer Football - Coupe de France - Semi-Final - Caen vs Paris St Germain - Stade Michel d'Ornano, Caen, France - April 18, 2018 Paris Saint-Germain's Thomas Meunier warms up before the match REUTERS/Stephane Mahe

PARIS, (Reuters) - Paris St Germain took a big step towards a domestic treble when they reached the French Cup final with a 3-1 win at Caen on Wednesday.

Kylian Mbappe's double and a last-gasp goal by Christopher Nkunku set up a final showdown against third division Les Herbiers on May 8 at the Stade de France.

PSG, who were crowned Ligue 1 champions on Sunday and won the League Cup, went ahead on 25 minutes when France striker Mbappe scored from close range when he deflected home Edinson Cavani's attempt on goal.

Soccer Football - Coupe de France - Semi-Final - Caen vs Paris St Germain - Stade Michel d'Ornano, Caen, France - April 18, 2018 Paris Saint-Germain's Thiago Silva celebrates after the match REUTERS/Stephane Mahe

Caen pushed for an equaliser they got two minutes before the break, Ismael Diomande beating Kevin Trapp with a 20-metre shot.

PSG doubled their tally nine minutes from time as Mbappe latched on to Cavani’s cross. The visitors sealed the win one minute into stoppage time when Nkunku netted from close range after a neat one-two with Dani Alves.

Soccer Football - Coupe de France - Semi-Final - Caen vs Paris St Germain - Stade Michel d'Ornano, Caen, France - April 18, 2018 Paris Saint-Germain celebrate after the match REUTERS/Stephane Mahe

(Reporting by Julien Pretot, editing by Ed Osmond)

Soccer Football - Coupe de France - Semi-Final - Caen vs Paris St Germain - Stade Michel d'Ornano, Caen, France - April 18, 2018 Paris Saint-Germain's Thiago Silva celebrates after the match REUTERS/Stephane Mahe

Soccer Football - Coupe de France - Semi-Final - Caen vs Paris St Germain - Stade Michel d'Ornano, Caen, France - April 18, 2018 Paris Saint-Germain's Thiago Silva celebrates after the match REUTERS/Stephane Mahe