Congo ensured Fifa's Under-17 World Cup began with a bang as they beat European champions Holland 1-0 in Morelia.
Although the Dutch largely dominated the first half, Justalain Kounkou scored against the run of play eight minutes after half-time.
The victory leaves Congo second in Group A, after hosts Mexico defeated North Korea 3-1 in the opening game.
The win was Congo's first at this level since 1991 when they beat Mexico, who they face next on Wednesday.
The Baby Red Devils were grateful to the linesman midway through the first half after Tonny Trindade de Vilhena's effort was ruled out for offside.
After they scored, the Congolese, who finished third at January's African finals, settled down and enjoyed some fine play.
Mavis Tchibota was in good form up the left flank, from where he often drifted inside to take up dangerous positions.
However, Kounkou's goal following an excellent Congolese counter-attack was the crowning moment for the Baby Red Devils.
Congo will now meet their Mexican hosts on Wednesday in Morelia, where the Netherlands take on the Koreans the day before.