Spain can seal a UEFA Nations League quarterfinal berth on Tuesday with a victory over Croatia in Split, arriving on the back of three straight group-stage wins that have already established them as the runaway leaders of their section.

Spain's Road to Split

The world champions travel to the Dalmatian coast with a perfect 9 points from three matches. A fourth consecutive win would take their tally to 12 points, leaving Croatia stranded on three and mathematically incapable of overhauling them. Should England simultaneously win or draw at home against the Czech Republic, Spain's top-two finish — and with it a quarterfinal place — would be mathematically confirmed with two group games still to play.

Spain's remaining fixtures are a home match against England and an away trip to the Czech Republic in November, both of which head coach Luis de la Fuente can, in theory, approach with reduced pressure.

Croatia's Motivation After Historic Humiliation

The mood in the Croatia camp is starkly different. Slaven Bilic's side goes into Tuesday's fixture reeling from what many are calling the most humiliating result in the nation's football history — a 7-0 home defeat to England on Saturday. Croatia have just three points and urgently need a result to stay alive in the group.

Bilic was blunt in his assessment of Saturday's collapse and signalled a sharply physical approach against Spain. "Against England, we didn't bring the necessary energy, which affects confidence; confidence affects technical performance, and in the end, it all looks like a question of willpower. Now we have to play a good match, a match for real men, against Spain," the Croatia head coach said.

Spain's Squad Management and Key Absences

De la Fuente made nine changes to his starting lineup from the previous Croatia fixture — a 4-1 win in Seville just a week ago — and is expected to rotate heavily again given the punishing schedule during the international break. Spain then beat the Czech Republic 3-1 in Oviedo on Saturday, though that display was reportedly their least convincing of the three outings.

The head coach highlighted the severe time constraints on his players. "We will get back to Madrid at 3 a.m., then we have one day to train on Sunday, before travelling on Monday and playing on Tuesday," De la Fuente said. The squeeze has already forced five players out of the squad with injuries over the past two weeks.

Midfielder Fabian Ruiz departed the squad over the weekend for a happier reason — he became a father for the first time — and his absence could open the door for Mikel Merino to return to the starting eleven.

Lamine Yamal the Standout Name to Watch

Lamine Yamal, the Barcelona forward, is expected to start in Split after a remarkable run of form that has seen him score early goals in all three of Spain's Nations League games so far. Yamal was substituted in the second half against the Czech Republic, leaving him fresher heading into Tuesday's match. At just 17, he has become Spain's most electric attacking weapon in this campaign.

With Croatia desperate for a response and Spain eyeing an early ticket to the last eight, Tuesday's contest in Split promises intensity from the opening whistle — and its outcome will have significant implications for the shape of the group heading into the November window.