Dynamos goalkeeper Willard Manyatera in action in an earlier round

The coach of Zimbabwe's Dynamos says stability at the club is behind their recent dramatic revival.

David Mandigora has led the Harare side to the semi-finals of the African Champions League, against all expectations.

Along the way they knocked out the 2007 winners, Etoile du Sahel of Tunisia.

Now they face another surprise package, Coton Sport of Cameroon, in the semis - with the first leg in Harare this weekend.

Dynamos have suffered constant divisions behind the scenes over many years, and Mandigora claims calm at the club is helping progress.

"There is unity and stability in the club," he told the BBC's African sports programme Fast Track.

"Before, there was infighting but now it's gone. I hope it continues like that.

"Our leadership now is ok, the players are focussed, they are getting their bonuses on time - if we carry on like this, I don't see us going wrong."

Only a few weeks ago the players were threatening strike action ahead of the game against Zamalek in a row over bonuses, but that issue has been resolved for now.

Expectations amongst fans in Harare are high, but Mandigora warned against complacency from his players and supporters.

"They expect more because of our win over Zamalek last week," he said.

"But we can promise them a very tough encounter on Sunday."

Dynamos were runners-up 10 years ago in the Champions League, but Cotonsport have never been that close to success.

They stunned big names Enyimba, Al Hilal and TP Mazembe to win their group this year and the Cotonsport coach Alain Ouombleon is feeling positive ahead of Sunday's showdown.

"We are very happy to be here, and my players feel very good," he said.

"We are ambitious for the match against Dynamos, we expect the better result, but nobody knows what will happen when we play the match."

Hear the full interviews with David Mandigora and Alain Ouombleon on Fast Track on the BBC World Service at 1600 GMT on Friday, 3 October