It’s the second time that Llambias, who has joined influential shareholder and Newcastle owner Mike Ashley at the club, has been physically abused since his appointment.
Many Gers fans have been upset over Ashley’s involvement in the club despite the Sports Direct chief keeping it afloat with loans which now total £10million.
Llambias was installed at Ibrox by Ashley in November, and watched the 2-0 defeat by Hibs on Friday.
A source close to Llambias insists he will stand firm. Concerning the latest attack, he said: “He was minding his own business when he was approached by a man.
“At first there was a lot of shouting but then there was a bit of pushing and shoving.
“It is the second time this has happened to Derek in a hotel bar in Glasgow, but it will not stop him focusing on the job he has at Rangers.
“Derek and Mike Ashley can’t understand why there is hostility to the new set-up. They want to rebuild Rangers into a strong team capable of challenging Celtic again and being a force in Europe. They keep asking themselves where Rangers would be but for the £10m loan from Sports Direct.”
Llambias could lose his job if Dave King is successful in March 4’s EGM vote in London.