DOHA, Qatar: How big was Japan’s 2-1 upset of Germany in the opening round of the World Cup?Newspapers in Japan used the term “Daikimboshi” from sumo wrestling to describe the magnitude of the surprise: when a low-ranked wrestler overpowers a grand champion.The victory has also been compared to Japan’s 34-32 upset of powerful South Africa in the 2015 rugby World Cup in England.Japan was the underdog against four-time champion Germany, but it will be a strong favorite in its next Group E match against Costa Rica, where a victory could move Japan into the knockout stage with a game to spare.A loss by Costa Rica on Sunday would eliminate it from advancing. Costa Rica faces Germany in its final match and Japan goes against Spain.Costa Rica is reeling from a 7-0 thrashing against Spain in its opener, and it’s anyone’s guess how the Ticos will respond.