REAL MADRID president Florentino Perez has talked up the talents of Monaco starlet Kylian Mbappe. West Brom 3-1 Arsenal : Gunners top-four chase suffers major setbackThe Sun. Getty Images5Ander Herrera concedes David de Gea could leave Manchester United this summerIt is a de. ancesThe 22-year-old has scored six goals and provided six assists to help the French club to the top of the division. Keep up to date with ALL the Arsenal news, gossip, transfers and goals on our club page plus fixture. The teenage French striker is the hottest prospect in world football and has been linked with a mega-money move this summer. Barca have already voiced an interest in the attacking midfielder and will reward him with a £17million bonus if he pens down his future at the Nou Camp. ting Barcelona have already held formal negotiations with Flamengo about a future deal for the whizz kid. “And I said yes, why would I not stay And they began to work with the representatives for everything that had to be signed. The France midfielder has been one of the most-impressive performers for the Ligue 1 leaders this season, and could?be the first big name out of the door this summer.