In Zenit's first match of the 2014–15 UEFA Champions League group stage on 16 September 2014, Witsel scored Zenit's second goal in a 2–0 away victory over former club Benfica. After finishing third in their Champions League group, Zenit were parachuted into the Europa League knockout phase; in the first leg of their Round of 16 clash against Torino on 12 March 2015, Witsel scored on a rebound as Zenit defeated the Italian club 2–0. On 26 April, Witsel scored the game's only goal in the seventeenth minute as Zenit defeated Arsenal Tula in a league match at the Petrovsky Stadium. On Sunday 17 May, Witsel played the full 90 minutes as Zenit drew 1–1 with FC Ufa, earning the point they needed to secure the Premier League crown, the club's fourth overall and Witsel's first with Zenit.