Barcelona coach Xavi Hernandez says 15-year-old Lamine Yamal can mark an era at the club after making his LaLiga debut in Saturday’s 4-0 win against Real Betis.Yamal, who doesn’t turn 16 until July, came off the bench for the final 10 minutes to become Barca’s youngest ever debutant in the Spanish top flight. Former Mallorca forward Luka Romero, now at Lazio, remains the youngest to ever play […]