Sale Sharks owner Brian Kennedy was at Ibrox on Wednesday as Rangers' administrators continued with attempts to sell the club.
Four indicative bids have been tabled with Duff and Phelps for stricken Scottish champions Rangers, who were forced into administration last month.
Kennedy and former Ibrox director Paul Murray's consortium are the only confirmed bidders with an American consortium also reported to be among the interested parties.
A spokesperson for Kennedy said: "Brian has visited Ibrox and Murray Park today which is part of the process. There is no further comment at this time."
Manager Ally McCoist was also at the stadium on Wednesday afternoon, as Rangers attempted to resolve their off-field issues, while trying to ensure a return to winning ways on the park. They suffered a third defeat in four games since going into administration when they lost against Dundee United on Saturday.
The loss at Tannadice means rivals Celtic could clinch the league title at Ibrox on Sunday if Motherwell drop points to Kilmarnock on Saturday. However, David Healy believes the Light Blues must take confidence from their last home meeting with the Hoops - an emphatic 4-2 victory at Ibrox in September.
The striker said: "It's going to be a tough challenge and it's always a big game, the Old Firm. I know everybody here is looking forward to it and Celtic will be looking to bounce back after their disappointment in the [Scottish Communities League] Cup final.
"We lost at Dundee United and Celtic lost in the cup final so we'll both want to bounce back - and there's everything that goes with the Old Firm in terms of the passion and Celtic might have the chance to win the league, but we beat them earlier in the season, which was an incredible game and performance.
"The atmosphere that day was electric so I know there is going to be a huge, passionate support for both sides on Sunday and everybody is going to be looking forward to it.
"The gaffer, from now up until the end of this week, will be getting us all prepared in terms of what way we are going to play, who is possibly going to play and the dangers we will face against Celtic.
"They have got a good squad and good players, players that can hurt you, but come Sunday hopefully we will have done enough during the week to know how we can go out and get the right result."
The club revealed the total raised by supporters contributing to the Rangers Fans Fighting Fund broke through the £150,000 barrier on Monday afternoon, and Healy believes fans deserve a victory against their biggest rivals this weekend after rallying around the club during a difficult period.
He told the club's official website: "It's not been an easy time, especially for the supporters, because results have gone against us for whatever reason.
"It's been three or four weeks since everything has settled down a bit and it's time for the players on the pitch to go out and give the supporters, who have backed us 100%, something to cheer about, but it's not been easy. Going to Dundee United with a makeshift back-four is tough because they are a good side which they proved in the cup against us.
"No disrespect to the lads who played at the back because they probably played well but Jig (Lee McCulloch) filled in at centre-half and he's also played in midfield and as a striker this year.
"That's sort of where we are with the squad at this minute and to go to Dundee United at any time during the season is tough. To go there with four of five young boys starting was always going to be a difficult task, but the gaffer said he can take a lot of positives from the game and I'm sure he'll watch the video again and hopefully he can pick the right team for the biggest game of the season so far."