Arsenal legend Martin Keown was impressed by one of the Gunners’ younger players in the Champions League win over Athletic Bilbao. Arsenal had a tough start to their Champions League campaign in the intimidating San Mames, but they got the job done. Gabriel Martinelli scored in the 72nd minute, latching onto a ball over the top by Leandro Trossard and firing home just 36 seconds after coming on. Martinelli then repaid the favour, teeing Trossard up for an effort which was deflected into Unai Simon’s net via the post three minutes from time. However, rather than focusing on the Arsenal attacker...