Ghana captain Andre Ayew has acknowledged that Portugal are favourites ahead of the Group H opener on Thursday, November 24.
According to the experienced attacker, the Black Stars are not bothered that they are not fancied to win.
He has however assured Ghanaians that the Black Stars have prepared well and will give the Portuguese a difficult time.
"We go into this game with Portugal favourites on paper. But we have to show that it is more important what happens on the pitch. We are playing a big side with top players, but we believe in ourselves and will make it very difficult for them," Andre Ayew said.
Meanwhile, the Al-Sadd SC attacker has stressed that the Black Stars are not bothered by the happenings within the Portuguese national team.
"It is not our problem what is happening within the Portuguese team," Andre Ayew stressed during a pre-match press conference today.
The Ghana captain added, "They are all great professionals playing at top teams and they will be ready for the World Cup, whatever else is happening."
The clash between Ghana and Portugal will kick off at 16:00GMT on Thursday.
Subsequently, the Black Stars will face off with their counterpart from South Korea and Uruguay to wrap up Group H.
Ghana needs to amass as many points as possible from the three games to advance to the knockout stage of the tournament.