Premier League giants Manchester United have identified Leeds United custodian Illan Meslier as David de Gea’s successor, as per The Athletic.Meslier, 22, is one of the most sought-after keepers in the Premier League. He has been with the Whites since 2019 (initially joined on a season-long loan from Lorient), keeping 25 clean sheets in 89 appearances.Football Daily@footballdailyDavid de Gea reminding Harry Maguire they're standing on the wrong side of the tunnel at Old Trafford 🤣118001944David de Gea reminding Harry Maguire they're standing on the wrong side of the tunnel at Old Trafford 🤣 https://t.co/gD211Bg7u6Meanwhile, De Gea has been at United since July 2011 and is the club's no. 1 goalkeeper. However, with the Spaniard turning 32 in November, the club must start looking for replacements. United view Meslier as De Gea’s long-term replacement but are unlikely to bring him to Old Trafford this summer. The Whites consider Meslier an integral member of their team and have no intention of parting ways with him this summer.De Gea has played nearly 500 games for United across competitions, keeping 165 clean sheets. He has won the Premier League, UEFA Europa League and an FA Cup with the club, among other honours.Manchester United increase budget to buy backup goalkeeperHaving loaned out Dean Henderson to Nottingham Forest earlier this summer, United are on the lookout for a backup keeper. As per the aforementioned report, they were expecting the 36-year-old Tom Heaton to deputise for De Gea and were looking for a third-choice keeper.Following a change of plans, United are now looking for a no. 2, and the budget has been raised accordingly. It's believed they initially had a budget of £1 million for their third-choice keeper. Now, that has increased to a sizable £7 million. New manager Erik ten Hag wants a custodian who could give De Gea a run for his money. If a suitable candidate is found, the budget could be increased.talkSPORT@talkSPORT“Nobody followed through with anything they told me. I turned many loans down.”“Wasting 12 months is criminal at my age.”Dean Henderson hits out at #MUFC in an exclusive interview with talkSPORT. Everyone is talking about this 3248315“Nobody followed through with anything they told me. I turned many loans down.”“Wasting 12 months is criminal at my age.”Dean Henderson hits out at #MUFC in an exclusive interview with talkSPORT. 🚨Everyone is talking about this 🔥 https://t.co/3CTYoiNwKPWork has reportedly intensified behind the scenes, as agents have been made aware of United’s improved budged and requirement. It would not be a surprise if a new goalkeeper arrives at Manchester United this summer.