United had been hoping to focus their attention elsewhere in the summer transfer market, but Onana's recent high-profile mistakes have potentially sparked a reshuffling of plans.
Laurie Whitwell writes in The Athletic: "The position of goalkeeper has not been on the agenda for United to this point. Striker is the priority, plus perhaps another attacker, a midfielder and wing-back. But faith in Onana is eroding due to mistakes in pivotal moments and after Amorim gave him space to 'disconnect' there is a feeling around the club that a lasting separation could at least be explored by both sides."