INGLEWOOD, Calif. — Quarterfinals often are remembered for breathtaking goals. Spain and Belgium might be remembered for the saves. Friday night’s FIFA World Cup showdown at SoFi Stadium features two of the finest goalkeepers of their generation — Spain’s Unai Simón and Belgium’s Thibaut Courtois — in a matchup that could prove every bit as decisive as the battles between Lamine Yamal, Nico Williams, Kevin De Bruyne and Romelu Lukaku at the other end of the field. Goalkeeper Unai Simon of Spain makes a save during their Round of 16 match win over Portugal. Xinhua/Shutterstock Spain’s run through the tournament has been built on control. Possession suffocates opponents, and nobody is better at it than the Spaniards. Simón quietly has become the foundation beneath it all. Against Portugal in