KRASNODAR, Russia — The brutal sacking of Julen Lopetegui on the eve of the World Cup leaves Fernando Hierro scrambling to keep Spain on track after a disorienting 24-hour for one of the pre-tournament favorites.

Spain face European champions Portugal in Sochi on Friday in a clash that caught the eye even before a series of astonishing events unfolded.

Lopetegui was surprisingly named Real Madrid manager on Tuesday and was meant to take charge at the Santiago Bernabeu after the tournament. But less than a day later he finds himself turfed out of the Spain camp.

The firing of the former Madrid and Barcelona goalkeeper is just the latest reminder of the fine balance any manager of La Roja must strike in the omnipresent rivalry between the country’s two biggest clubs.

For the first time in a major tournament since 2006, Real’s six-strong contingent outnumber Barca players in the Spain squad with only Gerard Pique, Jordi Alba and Sergio Busquets selected, along with Andres Iniesta, who only last month brought his glorious 16-year career at the Camp Nou to an end.

With at least six of the expected starting XI for the Portugal game to come from Madrid and Barca, Hierro, himself a former Real captain, must ensure club loyalties do not further undermine Spain’s chances, with divisions already appearing between the players and the federation.

According to Spanish press reports, the players’ wish for Lopetegui to stay, including from Pique and Busquets, could not change federation chief Luis Rubiales’ mind, so furious was he that Lopetegui had not informed his employers of negotiations with Madrid until minutes before the appointment was made public.

Lopetegui did not lose a single game in 20 matches as Spain boss but even in a flawless qualifying campaign on the field, the Madrid-Barca rivalry and Spain’s turbulent political situation overshadowed their performances.