By Matt Audilet The top-seeded player at the International Tennis Federation’s junior tournament in Ghana made headlines on Tuesday for a concerning post-match altercation with his opponent. After losing to Raphael Nii Ankrah, 15-year-old No. 1 seed Michael Kouame approached the net for what looked like a post-match handshake. Instead, he slapped his opponent in the face. A brawl reportedly broke out after the altercation, per Fox Sports. Kouame took to Instagram on Wednesday to issue an apology for his “regretful” actions. View this post on Instagram A post shared by Michael Kouame (@micha.ko…