Keysher Fuller’s goal made the difference between the two sides.
Costa Rica have beaten Japan 1-0 to keep their hopes of qualification in the next round of the World Cup alive.
Luis Fernando Suarez’s players spent most of Sunday’s game on the backfoot but came on top with right-back Keysher Fuller’s beautiful curler in the 81st minute, their first and only shot on target.
Japan, who entered Ahmad bin Ali Stadium full of confidence after their win over Germany, lacked the cutting edge to break down a resolute Costa Rican defence.
The game seemed headed for a dour stalemate but burst into life after Fuller’s late goal.
The result throws Group E wide open. Costa Rica, who lost their opening game 0-7 to Spain, are remarkably still in the mix to qualify for the next round.
A win on Sunday would have sealed Japan’s spot in the round of 16, but they will now need to get a result in their last game against Spain to keep their hopes of qualification alive.
Japan made five changes to the team which shocked Germany in their opening match as coach Hajime Moriyasu made full use of his 26-man squad.
In temperatures of 32 degrees Celsius (90 degrees Fahrenheit) at Ahmad Bin Ali Stadium, Japan immediately went on the attack and won a corner within 30 seconds to signal their intent.
Costa Rica coach Luis Fernando Suarez had resisted making wholesale changes to the team thumped by Spain, dropping teenage winger Jewison Bennette and defender Carlos Martinez to the bench.
Gerson Torres and 34-year-old centre-back Kendall Waston took their place in an ageing XI which featured four players from the 2014 World Cup quarter-finals.
But Japan’s early promise melted in the Doha sun and the first shot at goal — a tame effort which sailed high and wide — did not come until 10 minutes from half-time through Costa Rica’s 30-year-old Joel Campbell.
Source: aljazeera.com