Senegal's forward Sadio Mane celebrates after scoring a goal during the 2017 Africa Cup of Nations group B football match between Tunisia and Senegal in Franceville on January 15, 2017. / AFP / KHALED DESOUKI (Photo credit should read KHALED DESOUKI/AFP/Getty Images)

Senegal began their Africa Cup of Nations campaign with victory over Tunisia in Group B.

Tunisia almost took the lead in the opening two minutes, but Ahmed Akaichi’s header skimmed the post and he smashed a shot narrowly wide.

In between, Senegal took the lead through Sadio Mane’s penalty after Cheikhou Kouyate had been hacked down.

Kara Mbodj powerfully headed in a second, and almost scored an own goal when his clearance struck the post.

Tunisia were guilty of missing plenty of chances, in particular Youssef Msakni, who headed wide from two yards out and shot straight at Abdoulaye Diallo in the second half.

Victory for Aliou Cisse’s side means they top their group after Algeria’s surprising 2-2 draw against Zimbabwe.

AFCON 2017: Group B table

1. Senegal (3 points)

2. Algeria (1 point)

3. Zimbabwe (1 point)

4. Tunisia (0 points)