Alavés' first exit will be tested by Sevilla's high recoveries and fast pass into the box. Sevilla can make the opening spell dangerous through Fofana and Correia. The later contest rests on whether that first access becomes another clean finish, and whether Boyé can carry Alavés into the space behind the press. Both teams have shown that the contact after an equaliser can change the result.
Sevilla's Osasuna win showed Fofana carrying a regain into the forwards and Correia arriving for another finish. Against Getafe, Correia's corner found Salas, but Sevilla did little with the next attacking spell after Getafe responded. Alavés can defend centrally with an extra player, use Boyé as the direct receiver, then add Novoa or Mañas to the later box supply.
Bueno is suspended after playing against Getafe, and Sevilla's reported squad is also without Marcao, Sierra and Peque. Romero is included after leaving that match injured, which changes how much central support Sevilla can count on. Alavés have had the longer recovery after their cup postponement, and their later crosses and rebounds have produced real close contacts. That's why I'm siding with Alavés to take something from this match.