One of Bayer Leverkusen’s star players was spotted wearing an Aston Villa shirt in the aftermath of his side’s Bundesliga title win. Xabi Alonso’s men secured the league title thanks to a 5-0 home win over Werder Bremen on Saturday, sparking jubilant scenes at the BayArena. Leverkusen are looking to complete an invincible season, having not lost a single league game to date and toppling Harry Kane’s Bayern Munich in the process. READ MORE: Here’s what Aston Villa games are on TV in April and where to find themAston Villa are relatively familiar with the Bundesliga champions. Leon Bailey and Mo…