Ibrox chief Murray yesterday accused those who suggest there is a conspiracy behind the sale of the club's star defender of trying to cause "mayhem" at Ibrox.

He insisted he and his fellow administrators did nothing wrong in agreeing ton include a £7.8million release clause in the player's contract when he joined from Osasuna last summer.

That clause was triggered by Aston Villa this week, with Cuellar opting to leave rather than accept vastly improved terms to stay put.

Some fans have demanded resignations over the issue and there are rumours of protests tomorrow.

RST spokesman David Edgar told PA Sport: "Sadly, I still believe there will be protests on Saturday. The RST are not in favour of it and will not encourage it but I can see something unorganised happening."

Murray denied there was anything untoward about Cuellar's exit.

He told the club's official website, www.rangers.co.uk "I know there have been a lot of questions asked: 'Was he forced out the door?' etc, etc.

"But the clear fact is we sent out on the website an honest statement by the chief executive (Martin Bain) explaining the situation.

"But then people want to read into it and put their own twist on it; there's not a lot we can do."

Murray added: "People are putting that on websites, knowing there's no truth in it at all but just endeavouring to cause mayhem."

As for flak directed at himself, Murray said: "I'm told people phone in and say, 'Murray must go'.

"It's obvious one day I have to go. My family would love me to go.

"But I'm not going to leave this club until I'm sure there's somebody to take it on and it's in safe hands. That's the end of the story.

"I read all this stuff about people could do this and do that.

"You know what, maybe someone should come up to the mark and put their money where their mouth is and perhaps we could then talk."

Hearts, so familiar with turmoil themselves in recent years, will be hoping to capitalise on any Rangers unrest.

Manager Csaba Laszlo will be happy just to maintain the momentum from last weekend's opening 3-2 victory over Motherwell.

"Saturday is a very good game for us," he told Hearts News.

"The result against Motherwell has given us something to build on and we must keep working hard together to achieve results."

Meanwhile, goalkeeper Janos Balogh has returned to Hungary with no decision made on any move to Hearts.

The 25-year-old has spent the last few days in Edinburgh hoping to clinch an initial loan deal at Tynecastle.

"Janos is going back to Budapest," Laszlo said.

"The plan was to perhaps take him on loan for six months and see how he did but no decision has been made yet.

"We will look at the situation again after the game against Rangers at the weekend."