Former Arsenal star Granit Xhaka joined Bayer Leverkusen last year, and made history in an outstanding debut campaign under Xabi Alonso. Xhaka departed Arsenal after a seven-year spell to return to Germany, but no one would have expected what came next. Leverkusen won the Bundesliga undefeated, with Xhaka also scoring in the DFB-Pokal final, and they even reached the Europa League final. Alonso’s side were one of the best in Europe, and Xhaka was at the heart of it, having enjoyed an excellent final campaign at Arsenal before leaving. Alongside Xhaka was Nigerian striker Victor Boniface, who h…