Kai Havertz bagged a brace for the second time in six days as Bayer Leverkusen leapfrogged Borussia Monchengladbach into third in the Bundesliga with a 3-1 win in front of a stadium full of cardboard cutout fans.
Havertz has been linked with a summer switch to Chelsea and the German forward keeps putting himself in the shop window, following up his double at Werder Bremen on Monday with another two goals.
Borussia-Park was packed with thousands of cardboard cutouts of fans to make up for an otherwise empty stadium, while there were also banners protesting against ghost games.
The 20-year-old provided the finishing touch to a fluid counter-attack to give the visitors a seventh-minute lead, slotting underneath Gladbach goalkeeper Yann Sommer first time after being played through by Karim Bellarabi.
Marcus Thuram equalised with an emphatic strike seven minutes after half-time but parity would not last for long as Havertz scored from the penalty spot just before the hour after Nico Elvedi fouled Bellarabi in the area.
Following a fifth successive victory in all competitions, Leverkusen stayed within four points of second-placed Borussia Dortmund, who overcame Wolfsburg 2-0 thanks to goals from Raphael Guerreiro and Achraf Hakimi.
Werder Bremen boosted their survival hopes with a first win in eight matches, with Leonardo Bittencourt's 19th-minute goal helping them claim a 1-0 win at Freiburg.
Second-bottom Bremen therefore moved to within two points of safety.
Paderborn remain rooted to the foot of the table after a 1-1 draw with Hoffenheim in a game where both goals were scored in the first nine minutes.
Robert Skov put Hoffenheim ahead in the fourth minute but Dennis Srbeny levelled soon after.