By James Cormack Bayer Leverkusen are out for revenge as they take on Roma in the 2023/24 Europa League semi-finals. Xabi Alonso succumbed to former boss Jose Mourinho at this stage of the competition last season, with Roma grinding out a 1-0 aggregate victory before losing to Sevilla in the final. Alonso’s Leverkusen have matured and developed exponentially since that defeat, with the German side, who remain unbeaten across all competitions this term, already wrapping up the Bundesliga title. Germany’s supreme force overcame a tricky challenge in West Ham United to advance into the last four …