Kalidou Koulibaly proved an unlikely matchwinner as Senegal reached the last 16 of the World Cup with a 2-1 victory over Ecuador, who are out of the tournament
Senegal will now play the winners of Group B - the group which England currently top - on Sunday night
The Chelsea defender's superb volleyed winner came only two minutes after Moises Caicedo had pulled Ecuador level from a corner, a result which would have taken the South Americans through in their place
The African side fully deserved to qualify from their World Cup group for the first time in 20 years, largely in part to a first-half performance where they blew away Ecuador, who came into the match knowing they only needed a point to progress
It took until the final minute of the opening period for Senegal's dominance to count, when Ismaila Sarr was fouled in the area before confidently beating Hernan Galindez from 12 yards
Though Caicedo briefly gave Ecuador hope midway through the second period it was a brief respite with Senegal still the more dangerous side even after Koulibaly's goal, and Edouard Mendy's goal was relatively untroubled as they jumped into second to set up a last-16 tie with the winners of Group B
The form book had Ecuador as slight favourites to progress, having drawn with the Netherlands in a game they could easily have won, and needing only a point to reach the last 16 for the first time since 2006
A surprisingly gung-ho gameplan proved their undoing, with Idrissa Gueye missing a fine early chance for Senegal after Sarr exploited Ecuador's attacking full-backs and galloped in behind down the flank
Less than 10 minutes had gone by the time Senegal could have been two goals ahead, with Boulaye Dia dragging a shot wide when clean through after Ecuador failed to clear their lines
Finally the South Americans regained some composure but still found themselves behind before the break as Sarr stole in ahead of Felix Torres and was brought down by Piero Hincapie, who was left with his head in his hands as the Watford winger then scored emphatically from 12 yards
Ecuador made two substitutes at the break and with a much-needed change in shape finally began to control the tempo of the game
 It still took them nearly 25 minutes to break down a stubborn Senegal backline, when Caicedo stooped to turn home Torres' flick from a corner
Having waited so long to restore their hopes of qualification, they threw them away within moments
 Koulibaly would be more familiar attacking a free-kick with his head than his feet but when Gueye's delivery was nodded down to him, he finished with aplomb before Galindez knew anything about it
Ecuador threw men forward with their World Cup dreams on the line but in vain, as they failed to seriously test Mendy as Senegal celebrated reaching the last 16 at their expense
Chelsea's Kalidou Koulibaly put the Blues' club worries behind him and gave Graham Potter a glimpse of what he can achieve
 One perfectly timed tackle on Enner Valencia before the break highlighted a colossal defensive performance, and what a time to score your first international goal
Ecuador are out of the World Cup in the group stages for the third tournament out of the four they have reached
Senegal will play the winners of Group B in the last 16 on Sunday, kick-off 7pm
In the other Group A game,  with Cody Gakpo again on target in a comfortable 2-0 win
The Dutch will play the runners-up of Group B in the last 16
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