Nigerian interest in La Liga promotion playoffs will be represented by Kenneth Omeruo (CD Leganes) and Sadiq Umar (UD Almeria).
Omeruo and Sadiq both pulled out of Super Eagles friendlies against Cameroon on account of these playoffs.
Both Leganes and Almeria are drawn in separate sections, meaning they could only clash in the final if they both win their semifinals.
On Wednesday, Girona welcome Almeria, who placed fourth in the regular season, with the return leg on Saturday.
While Rayo Vallecano, who finished sixth in the regular season, host Leganes Thursday with the second leg to be played on Sunday in Madrid.
The overall winners of both semifinals will then do battle, first on June 13 with the return match a week later.
The winners of this final will be promoted to the Spanish top flight.