 Complete the following phrase:  During the 201819 season, Ajax participated in the Eredivisie, the KNVB Cup and the UEFA Champions League. With winning both the competition and the cup, it meant the first double won since the 200102 season. In the Champions League, they knocked-out defending champions Real Madrid in the round of 16. After beating Juventus in the quarter-final, they reached a Champions League semi-final for the first time since 1997. Ajax were seconds away from reaching the 