Manchester United could find themselves on the lookout for a new keeper this summer with David De Gea linked with an exit from Old Trafford after 10 years.
De Gea could find himself looking for a new club this summer after losing his number one spot to Dean Henderson in recent weeks, and that could leave United in need of a new stopper to challenge their new first choice.
A goalkeeper is certainly not at the top of Manchester United's priority list for the summer transfer window with a centre-back and striker on the agenda ahead of next season.
But should De Gea leave, he will need to be replaced, and with that in mind, we have rounded up five potential targets for United.
United could live to regret losing Johnstone as they prepare to search for fresh competition for Hederson this summe.
Johnstone was allowed to join West Brom on a deal worth around £6.5million in 2018 after seven loan spells during his professional days at Old Trafford.
The 28-year-old has since made 116 league appearances for West Brom and become an ultra-reliable stopper, even with the Baggies fighting relegation this summer.
There is now talk United could make a move to bring him back to Old Trafford, and there's no doubt West Brom would want to make a profit on the former Reds keeper.
A much more costly option is Aston Villa keeper Martinez, who only signed last summer from Arsenal on a deal worth around £20m.
Martinez earned his move after finally impressing at Arsenal following last season's restart having waited in the wings in North London as the club's number two and even number three after breaking into the first team around eight years earlier.
He has continued his fine form into his Aston Villa career, helping Dean Smith's men set themselves up for a top-half finish, and it's likely the Midlands club would demand well over the £20m they paid should they be asked to make a quick sale.
Another former academy star who could be a good option this summer is Burnley keeper Heaton.
Heaton left United permanently after several loan spells in 2010 to join Cardiff City on a free transfer and enjoyed a rapid rise three years later after joining Burnley on a free from Bristol City.
The 34-year-old was excellent for the Clarets before an injury forced him to lose his spot to Nick Pope, and that's when he made the move to Aston Villa for just under £8m.
Heaton has featured sparingly since the arrival of Martinez, though, and could be made available this summer.
He is now valued at just under £2m by Transfermarkt, and while Villa might not accept that low a bid, United could get a solid keeper on the cheap in Heaton, who already knows the place very well having spent eight years at the club from 2002 to 2010.
Areola is currently impressing at Fulham as Scott Parker's men scrap desperately to avoid the drop.
The 28-year-old is on loan from PSG where he has been since his youth days, initialy joining in 2006.
Though since, then he has managed only 75 senior appearances for the first team, spending five seasons out on loan across spells with Lens, Bastia, Villarreal, Real Madrid and now Fulham.
He has made 30 Premier League appearances this season and has coped comfortably with the Premier League, helping Fulham achieve a very respectable goals-against total of 42, a figure that is not at all typical of their position.
Areola is under contract until 2023 and valued at just under £15m as things stand.