A French junior tennis player on Wednesday apologised for delivering a Will Smith Oscars-style slap at an opponent but said his anger was sparked by insults from the crowd. Michael Kouame, 15, slapped Raphael Nii Ankrah across the face at a tournament in Accra in Ghana as the two teenagers met at the net to exchange the customary post-match handshakes on Monday. Kouame, who lost the tie in three sets, said on social media his outburst occurred "after an extremely frustrating and difficult match" during which he said he was insulted by the crowd who supported the local player.