Player sales have never been the Gunners’ strength, but they have sold Leandro Trossard for decent money already in this window. One of them made an absolute howler against Real Betis in Dublin: Kepa Arrizabalaga. Arsenal team news vs Real Betis: Predict who will score the first goal👀 Credit: Getty Images/Eric AlonsoKepa Arrizabalaga shows once again why Arsenal must sell himWhen Arsenal signed Kepa from Chelsea last summer, many people felt it was a smart move. MORE ARSENAL STORIESNow, in the friendly against Real Betis, Kepa made a needless mistake. Another fan reacted by saying: “Before Gabriel Jesus, I think Kepa Arrizabalaga needs to go.”