United signed Lammens on transfer deadline day, after a series of disappointing performances from goalkeepers Andre Onana and Altay Bayindir. Lammens joined United on a five-year deal, reportedly worth £21.7 million.
Leeds and Sunderland's decision not to sign Lammens may have been influenced by the tough start he could face at United. His potential debut could include a match against Manchester City, followed by a visit from Chelsea.
