Leandro Trossard came off the bench to make a decisive impact for Arsenal against Aston Villa. Arsenal were able to grind out a 2-0 win against Aston Villa in a Premier League clash on Saturday afternoon, and Mikel Arteta has Leandro Trossard to thank for securing his side all three points. Trossard has a brilliant record as a substitute, and underlined his ability to be a game-changer as he was introduced to the fray in the 65th minute at Villa Park, and put the Gunners 1-0 up with his first touch just moments later. The Belgian winger had taken the place of Gabriel Martinelli, who has been s…