The Light Blues are keen to snap up striker Lafferty, but failed with an initial £200,000 bid for the Northern Irishman, who scored the winner for the Jambos against Celtic on Saturday. Ibrox chiefs returned to the negotiating table and included their former captain Wallace in a proposed deal, but this was also rejected. Hearts are not in the market for a left-back and even if they were interested in 31-year-old Wallace making a return to Tynecastle seven years after he left them for Ibrox, his wages would have been a further stumbling block. Wallace has no future at Rangers after his bust-up with former boss Graeme Murty in April, and Ibrox chiefs had hoped they could use him as a makeweight to land Lafferty.

But as it stands Hearts will stand firm and Lafferty will remain at Tynecastle unless Rangers cough up a sum in the region of £750,000. Meanwhile Steven Gerarrd has warned his players he won’t tolerate repeated indiscipline on the pitch. The Light Blues earned a 2-0 win against St Mirren yesterday thanks to goals from Alfredo Morelos and Connor Goldson. But Rangers were reduced to 10 men for the second league game in a row after Ross McCrorie was sent packing.

Rangers transfer news: Kyle Lafferty scored against Celtic this weekend

Rangers transfer news: Rangers have made a second bid for Kyle Lafferty

Debutant Borna Barisic was also substituted because Gerrard did not want to risk the possibility of his side being reduced to nine men, with the Croatian defender on a booking. Hot on the heels of Morelos’ dismissal against Aberdeen on the opening weekend of the campaign, the manager has demanded his players learn to keep their cool. Gerrard fears being without key men through suspension if the red and yellow-card tally continues to rise and he wants it nipped in the bud immediately. He said: “I’ve spoken to the team about discipline and composure out there. “It’s difficult enough with 11 men. We are picking up too many red and yellow cards for my liking. But we’ll learn, grow and keep going. “It was completely different to last week when we felt hard done by, said our piece and got justice in terms of the decision being overturned.

Rangers transfer news: Steven Gerrard is keen to sign another forward this summer