Sadio Mane suffered a sickening blow to the head only to score just moments later as Senegal booked their place in the Africa Cup of Nations quarter-finals.
The Lions of Teranga, among the tournament favourites, saw off Cape Verde after the minnows had seen two men sent off in Cameroon.
And they had Liverpool star Mane to thank for breaking down the stubborn resistance of Cape Verde, after his superb 63rd minute strike opened the scoring.