Otto Addo has called for his players to step up ahead of their next AFCON qualifier against Sudan, stressing that a victory is essential to their qualification hopes.

After a defeat and draw against Angola and Niger respectively, Addo is feeling the pressure but believes the team can still progress.

"It will be difficult again. I knew from the start, it's just some little margins, little details which can decide.

"This will be again, for us it will be a crucial match. We have to win. There is no way around it, and we have to win.

"If we want to have the chance to play better after, we have to win. We are under pressure, this is for sure and we have to do better," he said.

Otto Addo stressed the importance of learning from past mistakes in the first two matches as the Black Stars continue their campaign.

"We are allowing too cheap goals. Like I said, I am disappointed; we didn't learn the lessons from the first game.

"Now it's a set piece, we are all back, we need to defend this better, this is for sure and like I said, I am really disappointed.

"We have to improve to use our chances and also to defend better in detail and to learn our lessons. Like I said, the goals are too cheap, and we have to grow from this," Addo explained.

The Black Stars are under pressure to deliver as they face Sudan next month, knowing that anything less than a win could jeopardise their chances of making it to Morocco for the tournament.