Cajasol Sevilla failed to build on a rare win in the ACB and crashed to a 64-56 home defeat to Proteas EKA AEL on the opening night of EuroChallenge Top 16 play.
LaVell Blanchard was immense for the Cypriot club, scoring 11 points and pulling down a game-high 15 rebounds in the Group K triumph.
Cajasol, who won for only the third time in Spain's top flight at the weekend in a home success against Granada, started slow and trailed 15-7 at the end of the first quarter but hit back to knot the contest at 24-24 by half-time.
With the game level at 41-41 at the end of the third quarter, Proteas outscored them 23-15 the rest of the way.
Juan Jose Triguero had 13 points and nine rebounds for Cajasol.