Eto'o eyes new Nations Cup record
It is the third meeting in the last four months between the two teams with Cameroon having won the last two encounters.
Inter Milan striker Eto'o already has the record for the most number of tournament goals - scoring 16 times over the last five finals - but last week said he wanted to set a new mark for the most number of goals in a single tournament.
That record of nine was set in 1974 by Zaire striker Mulumba Ndaye.
Tunisia's new-look side seek to shake off the disappointment of missing out on World Cup qualification when they meet Zambia in the second of the Group D games in Lubango.
Tunisia play only a second match under new coach Faouzi Benzarti, whose debut ended in an embarrassing 2-1 home defeat by minnows Gambia in a warm-up friendly on Saturday.