Senegal became the first team through to Africa's play-offs for the 2022 World Cup in Qatar when beating Namibia 3-1 on Tuesday.

Turkey-based forward Famara Diedhiou was the hero, outshining Sadio Mane and others as he scored once in the first half and twice in the second to register his second hat-trick for Senegal.

Peter Shalulile had found the back of Edouard Mendy's net after Diedhiou's opener to give the Namibians brief hope of holding on against the 2019 Africa Cup of Nations runners-up.

The match was played in Soweto, South Africa, since Namibia's home stadium in Windhoek has been declared unfit to host matches.

The win takes Senegal to 12 points in Group H, with Namibia (four points), Congo (two) and Togo (one) now all out of the running. Congo host Togo later on Tuesday.

The winners of Africa's ten qualifying groups will contest the play-offs next March, whereupon the continent's five representatives in Qatar will be determined.