Tottenham Hotspur could be in talks to sign one of the most promising young players in Asia this summer transfer window. Ange Postecoglou has added two talented teenagers to his ranks this summer in Lucas Bergavll and Archie Gray. The duo have really impressed in pre-season so far, despite Gray having to play at centre-back during the win at Hearts. That said, it’s thought Tottenham may be about to sign another teenager this window who is considered one of the biggest prospects in Asia. READ MORE: Tottenham have made contact to sign £25m teenager who’s ‘one of the best’Tottenham potentially in…