Alaves have defeated Eibar 2-1 in Spanish La Liga action on Friday (Saturday AEDT).
Lucas Perez came on at half time and scored within 15 seconds of the restart from Joselu's cross.
Midfielder Oliver Burke scored his first La Liga goal on 66 minutes to make it 2-0.
Fabian Orellana pulled a goal back for Eibar with seven minutes left but the home team held on for the points.
"The first half was ours but they scored so early in the second half and that made it hard for us," Eibar midfielder Edu Exposito said.
"Games in the second half of the season are harder," said Lucas Perez. "This was a hard-fought win for us."
Alaves move up to 13th place in the table, while Eibar remain in 16th position ahead of the rest of the weekend's games.