Laboral Kutxa put one foot in the Euroleague play-offs with a 75-71 home-court win over Barcelona.
Victory for CSKA Moscow over Brose Baskets Bamberg or Real Madrid against Olympiacos will confirm Laboral's place in the playoffs.
Basque outfit Laboral came into the game with a 9-1 record in the Euroleague this season, while Barca were on the back of a 1-6 run away from Catalonia.
The contest was true to form as strong middle quarters helped Laboral earn a lead that Barca failed to whittle away, despite a 26-19 winning final period.
Ioannis Bourousis put up 22 points for Laboral, ably supported by Mike James (14 points), Adam Hanga (11) and Kim Tillie (10).