Mbappe strikes as PSG beat 10-man Metz 5-1

METZ, FRANCE (Reuters) - Kylian Mbappe scored a superb goal on his debut for Paris St Germain and Edinson Cavani netted twice as the Ligue 1 leaders stretched their perfect start to five wins with a 5-1 rout of 10-man Metz in an entertaining clash on Friday.