Internal discussions continue at Manchester United over their next steps regarding signing a goalkeeper, with Aston Villa's Emiliano Martinez and Royal Antwerp's Senne Lammens targeted.
Martinez was not included in Villa's matchday squad to face Crystal Palace on Sunday and Villa boss Unai Emery admitted the club needed to "fix" the situation.
It is understood that Martinez and Lammens are both keen on a move to Old Trafford.
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Gary Neville believes his former club Manchester United needs to bring in a new goalkeeper to be the team's number one as a matter of urgency and reacted to their Carabao Cup exit to League Two side Grimsby Town.
Gary Neville believes Man Utd needs to bring in a new goalkeeper to be the team's No 1 as a matter of urgency
Martinez has had offers but is thought to be waiting on Man Utd.
One source has told Sky Sports News that United have explored the conditions of a deal for the 32-year-old.
Speaking after Villa's 3-0 loss to Crystal Palace, where Martinez was not included in the match-day squad, Emery said: "It is not helping us. One of the circumstances not helping.
"We will see how we close the transfer window. We have a lot of circumstances that are not helping us be mentally like we were last year."
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Emery on Emi Martinez Speculation
Aston Villa boss Unai Emery has spoken out amid speculation that Emi Martinez could be heading to Manchester United. With the transfer window closing, Emery says the club is focused on squad balance.
When asked why Martinez was not included in the squad, Emery added: "He was not available. Tomorrow is the deadline, and we will see how we finish. We need the players focused and 100 per cent. He wasn't.
"We will see tomorrow. I cannot tell anything more. I don't know, this is the reality. We will see tomorrow."
The Argentina international signed a five-year deal last August that runs until the summer of 2029.
The World Cup winner played in Aston Villa's 1-0 loss at Brentford last weekend for his first appearance of the season.
Meanwhile, Man Utd continue talks with Royal Antwerp over Lammens.
Manchester United are in talks to sign Royal Antwerp goalkeeper Senne Lammens
Image: Man Utd are in talks to sign Royal Antwerp goalkeeper Senne Lammens
Galatasaray are also pushing for the 23-year-old and United will not get drawn into a bidding war over the Belgian shotstopper.
Both potential deals are thought to be complicated given the time left in the window, and there is still a chance United will not sign a goalkeeper before the deadline.
Talks still open between Betis and Man Utd over Antony deal
Betis' Antony looks on during a training session ahead of the Europa Conference League final soccer match between Real Betis and Chelsea
Image: Could Antony join Real Betis in a permanent deal from Man Utd?
Man Utd are also working on exits ahead of Monday's 7pm deadline.
Dialogue remains open between Real Betis and Manchester United over the signing of Antony.
A deal was agreed on Friday - only for Betis to pull out, stating they could not afford it on the current terms.
There is a willingness from all parties to complete the move, and still a cautious optimism that a deal can be struck.
The impasse centres on how Antony's compensation for the remaining two years of his contract is paid.
The move might also require Antony to compromise on his personal terms, something United feel he should be able to do given he has rebuffed a number of offers in favour of a return to Betis.
Hojlund completes Napoli medical
AC Milan have opened talks with Man Utd over a deal for Rasmus Hojlund
Image: Rasmus Hojlund is set to join Napoli from Man Utd
Rasmus Hojlund has completed his medical ahead of his move from Manchester United to Napoli.
Hojlund is set to join on an initial loan with a conditional obligation that will be triggered if Napoli qualify for the Champions League.
The total package is understood to be worth a potential £43m, including the loan fee.
The loan fee is more than £5m (€6m) and the obligation price is £38m (€44m).