Lokomotiv - Zenit: Mikhail Vilkov will be the match ref

The 37-year-old referee will meet with Zenit for the 24th time in his career.
«Локомотив» — «Зенит»: матч обслужит бригада Михаила Вилкова
He will be assisted by Maksim Gavrilin of Vladimir and Alexander Bogdanov of Vereya. The fourth official will be Pavel Kukuyan from Sochi. 

Previously while overseeing the blue-white-sky blues, Vilkov has seen Zenit get 16 wins, six draws and just one defeat. The last time the referee from Nizhny Novgorod was in charge of Zenit was the 1-0 away win over Orenburg. 

The match against Lokomotiv will be held on Sunday 21 May beginning at 15:00 St. Petersburg time.