Time: 10 a.m.
England: F Harry Kane. He stepped up big-time in the Round of 16 win over Colombia, scoring penalty kicks in regulation and the game-deciding shootout. Now England is one win away from its first World Cup semifinal since 1990.
Sweden: M Emil Forsberg. The talk of him being the heir to Zlatan Ibrahimović might have seemed to some like a bit much. But when you deliver a game-winning goal in a World Cup elimination game, as he did against Switzerland, the hype gets justified.
Time: 2 p.m.
TV: Fox in English, Telemundo in Spanish
Radio: TuneIn and Sirius XM 83 in English, Fútbol de Primera in Spanish
Russia: GK Igor Akinfeev. His incredible penalty kick saves against Spain will go down in World Cup lore. Now he faces another potent attack — and it's a safe bet that Croatia won't just pass the ball around all day. They'll shoot it.
Croatia: M Luka Modrić. The point about Croatia shooting the ball more than Spain comes with a caveat. Russia is probably going to play a high press, which means Croatia will have to keep the ball in the first place. Modrić will be key to that. The more he commands the action, the better Croatia's odds are of winning.