Not only did these teams impress World Cup viewers - their fans did, too.
As seen in videos, supporters of the "Samurai Blue" carried waste bags and roamed around the stadium to pick up all sorts of the litter left by spectators.
Today was only their second opener at the tournament ever, and nothing will ever top the elation of beating holders France in 2002, but their 2-1 win over Poland was a huge success for the Lions of Teranga in a tough group.
Japan coach Akira Nishino talked before the match of his worry about the "psychological impact" of Monday's quake which hit the Japanese city of Osaka during morning rush hour, killing at least five people.
Fans of both Senegal and Japan would've been expected to celebrate their nations' wins at the 2018 FIFA World Cup by pouring out onto the streets in celebration. "Why I support Japan", a social media user tweeted.
China’s Xi praises North Korea’s Kim for Trump summit, promises support
As NPR's Anthony Kuhn notes, Chinese state media have even publicly announced this third visit with Kim still in the country. Following the Singapore summit, China suggested the UN Security Council could consider easing the economic restrictions.
Japan's Yuya Osako (second right) celebrates after scoring their second goal during the Russian Federation 2018 World Cup Group H against Colombia at the Mordovia Arena in Saransk.
Japan-based soccer journalist Scott McIntyre is following the team across Russian Federation, and told the BBC such cleanliness is to be expected from the fans.
North said the fans take pride in showing others that they clean up and are respectful outside their country. "An important aspect of Japanese society is making sure that everything is absolutely clean, and that's the case in all sporting events", sports reporter Scott McIntyre says.
"What better place to make a statement about the need to care responsibly for the planet than the World Cup?" he asked.