Steve Bruce insists the £5.5million sale of Emile Heskey to Wigan will help Birmingham keep hold of their other prize asset Jermaine Pennant.
Former England international Heskey, 28, completed his move back to the Premiership today.
And Bruce believes with the club's coffers now swelled by that sale, there is no need to let former Arsenal youngster Pennant leave.
'Jermaine has been fantastic for us and it would take one hell of an offer to tempt us, especially now we don't need the money,' he told Sky Sports News.
'We've done very well this summer in terms of what we've been able to do. We've let people go out of contract but brought three or four players in to counter that.
'We don't want him to go. I believe he's improved with us and we want him to stay but who knows what's around the corner? As we've said, everybody's got their price, whether you're Ronaldo or whoever.
'What I've said to supporters is we won't be letting anyone go in a fire sale. We don't have to sell.'
Bruce has promised he will strive to bolster City's attacking options for the Coca-Cola Championship promotion campaign, with Mikael Forssell, DJ Campbell and summer recruit Cameron Jerome his only options up front at present.
'We think [selling Heskey] is a good piece of business all round but then again he's 28, he's got 45 England caps and he's a good player,' he acknowledged.
'The problem we've got now is we've got to replace him and that's going to be very difficult.
'We must try to find a replacement as quickly as possible but we'll be patient.'