Ally McCoist believes Crystal Palace need to pull out all the stops to prevent Ismaila Sarr from joining Liverpool.talkSPORT understands Sarr is pushing for a move to the Reds ahead of deadline day, with the winger viewed as the ideal replacement for Cody Gakpo, who is being courted by Manchester City.Sarr has given Premier League full-backs plenty of nightmares since he joined PalaceGettySarr, who has three years to run on his contract, has even taken the drastic step of wiping all Palace-related content from his Instagram.As it stands, Palace are not willing to let Sarr go, especially this late in the window.What did Ally McCoist say about Ismaila Sarr’s future?And it’s a stance McCoist urged the Eagles to maintain.“I don’t see it happening,” McCoist said on talkSPORT Breakfast.“I’m not sure he’s exactly what Liverpool need.“I just think it would be a disaster for Palace if they lost him.”McCoist added that the acquisition of Sarr would also give Reds boss Andoni Iraola a ‘serious headache’ when it comes to team selection.And that will only become more difficult once Liverpool complete the signing of Bradley Barcola, who is poised to join from Paris Saint-Germain in a deal worth up to £123million.However, Breakfast co-host Jeff Stelling disagreed with McCoist when evaluating the potential move for Sarr.“I think he’d do well at Liverpool,” Stelling said.Liverpool would be the third English club of Sarr’s career, having been with Watford for four yearsGetty“I didn’t expect him to kick on the way he did at Palace, but he really has.”Sarr has registered 33 goals and 10 assists for the Eagles since joining from Marseille in August 2024.The Senegal international’s attacking contributions played their part in helping Palace win the FA Cup and Conference League.However, Sarr is yet to take the field this term for Palace due to a groin injury.How has Crystal Palace performed this season?It has been a difficult start to the campaign for the south London outfit having lost both of their first two Premier League fixtures.A 2-0 loss to Everton was followed by a 4-1 defeat against Manchester City last Friday, leaving Palace as one of four Premier League teams yet to pick up a point this season.Pierre Sage’s side will aim to pick up their first win of the campaign when they travel to Fulham on Saturday.