Liverpool have been hit with another injury blow after goalkeeper Alisson Becker limped off during their Champions League defeat to Galatasaray on Wednesday night.The Brazilian shot-stopper, 33, was forced off in the second half after racing back to deny Victor Osimhen. According to a report from The Athletic’s James Pearce, scans are scheduled for Thursday to assess the damage, but early concerns suggest he could be sidelined for weeks.Speaking after the game, manager Arne Slot admitted there was no chance of Alisson featuring against Chelsea this weekend, saying: “He will not play on Saturday. It’s basically 100% certain.”This isn’t the first time Liverpool’s No.1 has faced hamstring issues, with a similar problem keeping him out for two months last season. Losing the four-time Golden Glove winner again would be a major setback, especially with other injuries already limiting squad options.In Alisson’s absence, summer signing Giorgi Mamardashvili is expected to make his Premier League debut at Stamford Bridge. The 25-year-old Georgian, recruited from Valencia, stepped in midweek in Istanbul and will now be tasked with filling one of the most crucial roles in Slot’s side.Elsewhere, Florian Wirtz is still struggling to settle following his £116m move from Bayer Leverkusen, and pundit Jamie Carragher has even suggested a spell out of the team. Meanwhile, forward Hugo Ekitike also left the Galatasaray clash in discomfort, although Slot sounded more positive about his fitness.To add to the concern, Alisson has already been excluded from Brazil’s squad for their upcoming friendlies against South Korea and Japan – a worrying sign his recovery could take longer than expected.With crucial fixtures looming against Chelsea and Manchester United, Liverpool now wait nervously for medical confirmation, knowing their season could be heavily shaped by the fitness of their world-class goalkeeper.