Birmingham City co-owner David Sullivan says he and David Gold need to be convinced that Carson Yeung can improve on their work if the Hong Kong billionaire is to complete his takeover.

Sullivan said: "I know some people are concerned about what is going on with the club's share-holding, I want to assure them there have been no changes.

"The club is being run by the people who have done a great job for the past 14-15 years and therefore the club is in good hands.

"We welcome the investment of Carson Yeung's company Grandtop who bought 29.9%, a minority share-holding in the club.

"David Gold and I will only cease to be majority shareholders if we think someone can do a better job of running Birmingham City than we have."