Valencia vs. Celta Vigo (Wednesday, 7.00pm)
Both unbeaten so far in 2024, Valencia and Celta Vigo convene at Mestalla on Wednesday evening, with a place in the Copa del Rey quarter-finals at stake.
Rafa Benitez returns to the scene of several former glories, but his Celta side trail their hosts by 12 points in La Liga and have a far inferior cup record.
We say: Valencia 1-0 Celta Vigo
As Celta Vigo tend to struggle on the road, Valencia can continue their revival by securing a spot in the Copa del Rey's last eight. The hosts possess more squad depth and young talent than their visitors, who are more concerned with events at the wrong end of La Liga.
Osasuna vs. Real Sociedad (Wednesday, 8.00pm)
Osasuna and Real Sociedad are back in action in the Copa del Rey when they go head to head at the El Sadar Stadium for a place in the quarter-finals on Wednesday.
While the White and Blues suffered a quarter-final exit last season, the hosts made it all the way to the final before falling to a narrow defeat against Real Madrid.
We say: Osasuna 1-2 Real Sociedad
Having suffered their first defeat of the year last time out, Osasuna and Sociedad will head into Wednesday's game looking to bounce back and pick up a morale-boosting result. Alguacil's men are currently on a fine run of results at the El Sadar Stadium and we fancy them coming out on top once again.
Girona vs. Rayo Vallecano (Wednesday, 8.30pm)
Girona and Rayo Vallecano will be fighting for a place in the quarter-finals of the Copa del Rey when they meet at Estadio Municipal de Montilivi on Wednesday evening.
Girona have only made it to the last eight of Spain's main domestic cup once in their entire history, while Rayo Vallecano have never reached the final.
We say: Girona 2-1 Rayo Vallecano
Girona were surprisingly subdued against struggling Almeria on Sunday, but the fact that they are top of La Liga in January should not be underestimated. Rayo Vallecano, meanwhile, have maintained their form from the last two seasons.
This should be an entertaining cup tie between two of Spain's rising clubs, but we expect Girona to perform closer to their peak levels and reach the quarter-finals for only the second time in their history.