Copa del Rey: Round of 16 concludes this week with second leg matches

The most interesting tie in terms of results from the first leg is Espanyol vs. AC Alcorcón, which is led 1-0 by the Alfareros thanks to a 1-0 home win in the first leg the second division side. Given that the second leg is back in Barcelona, Espanyol remain favorites to advance but fans of upsets and chaos will likely be rooting for Alcorcón.

Four of the eight ties are even after the first leg including Atlético Madrid vs. Valencia and Villarreal vs. Real Sociedad. The match between La Real and the Yellow Submarine will have an interesting storyline after Monday's league match between the two sides. Villarreal crushed La Real 5-1 which should have Jagoba Arrasate's side looking for a measure of revenge.

Barcelona is the one team that is all but guaranteed a spot in the quarterfinals after they thumped Getafe 4-0 in the first leg. Given the busy schedule that Barca is dealing with, it's likely that Gerardo Martino will rest some starters with the comfortable advantage. Real Madrid are also in reasonably good shape, leading Osasuna 2-0 after the first leg in Madrid.

Almeria vs. Racing Santander | Tied 1-1 on aggregate

Athletic Bilbao vs. Real Betis | Betis lead 1-0 on aggregate

Levante vs. Rayo Vallecano | Tied 0-0 on aggregate