Brazil, Belgium pass tests, move on in World Cup — PHOTOS | Lights FC/Soccer

A Japan supporters cries after losing the round of 16 match between Belgium and Japan at the 2018 soccer World Cup in the Rostov Arena, in Rostov-on-Don, Russia, Monday, July 2, 2018. (AP Photo/Petr David Josek)

Brazil's Neymar walks on the pitch during the round of 16 match between Brazil and Mexico at the 2018 soccer World Cup in the Samara Arena, in Samara, Russia, Monday, July 2, 2018. (AP Photo/Andre Penner)

Brazil's Neymar, bottom, challenges for the ball with Mexico's Edson Alvarez during the round of 16 match between Brazil and Mexico at the 2018 soccer World Cup in the Samara Arena, in Samara, Russia, Monday, July 2, 2018. (AP Photo/Sergei Grits)

Brazil's Gabriel Jesus, right, challenges for the ball with Mexico's Carlos Salcedo during the round of 16 match between Brazil and Mexico at the 2018 soccer World Cup in the Samara Arena, in Samara, Russia, Monday, July 2, 2018. (AP Photo/Sergei Grits)

Brazil's Neymar celebrates after scoring his side's opening goal during the round of 16 match between Brazil and Mexico at the 2018 soccer World Cup in the Samara Arena, in Samara, Russia, Monday, July 2, 2018. (AP Photo/Frank Augstein)

Brazil goalkeeper Alisson, left, blocks a kick by Mexico's Javier Hernandez, right, during the round of 16 match between Brazil and Mexico at the 2018 soccer World Cup in the Samara Arena, in Samara, Russia, Monday, July 2, 2018. (AP Photo/Andre Penner)

Belgium's Kevin De Bruyne, right, runs for the ball in this slow shutter speed photo during the round of 16 match between Belgium and Japan at the 2018 soccer World Cup in the Rostov Arena, in Rostov-on-Don, Russia, Monday, July 2, 2018. (AP Photo/Petr David Josek)

Japan's Gen Shoji leaves the pitch at the end of the round of 16 match between Belgium and Japan at the 2018 soccer World Cup in the Rostov Arena, in Rostov-on-Don, Russia, Monday, July 2, 2018. Belgium won 3-2. (AP Photo/Hassan Ammar)

Belgium's Romelu Lukaku, right, prays after winning the round of 16 match between Belgium and Japan at the 2018 soccer World Cup in the Rostov Arena, in Rostov-on-Don, Russia, Monday, July 2, 2018. (AP Photo/Petr David Josek)

Belgium's Marouane Fellaini celebrates after scoring his side's second goal during the round of 16 match between Belgium and Japan at the 2018 soccer World Cup in the Rostov Arena, in Rostov-on-Don, Russia, Monday, July 2, 2018. (AP Photo/Natacha Pisarenko)

Belgium's Eden Hazard is fouled by Japan's Gaku Shibasaki during the round of 16 match between Belgium and Japan at the 2018 soccer World Cup in the Rostov Arena, in Rostov-on-Don, Russia, Monday, July 2, 2018. (AP Photo/Petr David Josek)

MOSCOW — With soccer powers dropping out of the World Cup left and right, Monday’s knockout matches in Russia were about passing tests. Neymar had already avoided the fate of Lionel Messi and Cristiano Ronaldo by helping his Brazil team get out of its group. But could he carry the Brazilians when it mattered? Answer: a goal and an assist as the five-time champs shut down Mexico 2-0.

Belgium, for all the talent it showed in winning its group, faced lingering questions about whether it had the mental toughness to go much beyond that. And many wondered whether Japan deserved to be in the round of 16 at all. The answers, delivered over a five-goal second half that saw the Europeans come back from two goals down to find an injury-time winner: Japan absolutely belonged, and Belgium has the stomach to fight back.