Laboral Kutxa took a 2-0 series lead over Panathinaikos in the Euroleague play-offs following a thrilling 82-78 overtime win.
The scores were tied at 73-73 at the end of regulation as Panathinaikos staged a late comeback thanks to Dimitris Diamantidis late three-pointer on Friday.
But they were undone in overtime as Laboral emerged triumphant in game two of the best-of-five series.
After Miroslav Raduljica missed the chance to level the scores with 10 seconds remaining in OT, Darius Adams made a pair of free throws to secure Laboral's win.
Adams led the way for Laboral, who only need one more win to progress to the next round as the series heads to the Greek capital in Athens, posting 24 points which included five three-pointers.
He was well supported by Davis Bertans (15 points), Ioannis Bourousis (14 points) and Mike James (13 points).
Barcelona squared their series with Lokomotiv Kuban via a comprehensive 92-66 road victory.
The Spaniards lost game one but bounced back at Basket-Hall Krasnodar to steal home-court advantage, meaning they will host the next two fixtures.
Juan Carlo Navarro was the star of the show in his 300th Euroleague appearance, scoring a team-high 18 points.
Malcolm Delaney's 19 points led Lokomotiv.