Promoter Frank Maloney says poor ticket sales for Friday's British title fight at Meadowbank could lead to SportsNetwork pulling out of Scotland. Local fighter Alex Arthur takes on Glasgow's Craig Docherty for the super featherweight championship.
But only 1500 seats out of 3,000 have been snapped up at the Edinburgh venue.
Maloney said: "Frank Warren and I spoke about the shows in Scotland, the response of the public and it concerns us. We've seen it in Glasgow before."
SportsNetwork, owned by Warren, was also disappointed with attendances at WBO featherweight champion Scott Harrison's recent fights at the Braehead Arena.
That, in part, led to the Cambuslang boxer's next fight in June against Michael Brodie being held in Manchester.
 | It makes me wonder if Docherty is just there for the pay day |
The Arthur-Docherty fight is being billed as potentially the most exciting domestic fight since Ken Buchanan fought Jim Watt in Glasgow in 1973.
SportsNetwork initially lost the purse bid for Friday's fight to Barry Hearn and Docherty's manager, Tommy Gilmour.
But a dispute over dates led to the British Boxing Board of Control entertaining fresh purse bids, which SportsNetwork won with a substantial increase in their original offer.
"Frank Warren pulled out all the stops to deliver this fight to Edinburgh with the new bid," said Maloney.
"We were told this was the biggest fight in Scotland since Buchanan fought Watt and so to say that we are disappointed is putting it mildly.
"When you look at the amount of work we've put in trying to build Scottish boxing, it is a concerning factor and it worries me.
"Scott Harrison is now on the road for the first time since 2001 and we're also looking at younger fighters like Gary Young, we might have to take them on the road again.
"But I don't know what the answer is. If we put on Ricky Hatton or Michael Gomez in Manchester, they sell 4000 tickets without blinking.
"SportsNetwork are not quitters, they will stay in there, but they can only stay in there for so long and if they don't get a response then who knows?"
Maloney also suggested Gilmour and Docherty had been less than supportive in selling the fight.
"It makes me wonder if Docherty is just there for the pay day," he said.
"I've never known a boxer fighting for a championship who doesn't want to sell tickets."
However, Gilmour replied: "There is not a West of Scotland name or phone number on the posters advertising the fight.
"They want to sell tickets through here, but neither mine nor Craig's number is there."