David de Gea is set to leave Manchester United this summer after failing to be included on the club's retained list for next season.
De Gea is out of contract on June 30 and has so far not been able to agree terms on a new deal, which could signal the end of his 12-year spell at Old Trafford.
United sources have indicated De Gea's contractual situation is looking bleak, with the 31-year-old so far unwilling to accept a reduction on his current £375,000-a-week salary.
Included on United's retained list are youth striker Mateo Mejia and Under 21s player-coach Tom Huddlestone, both of whom have received fresh contract offers from the club.
But De Gea was omitted, despite being in the same contractual position as the pair, suggesting the former Spain international will be on his way this summer.
If that is the case, United will have to sign a new No.1 goalkeeper, with Tom Heaton and Nathan Bishop the only options if, as expected, De Gea leaves as a free agent.
De Gea has made 545 appearances for United, putting him fifth on the club's all-time list, but it is looking increasingly like he has played his last game for the Red Devils.
He won the Golden Glove last season, awarded to the goalkeeper with the most Premier League clean sheets, but his campaign was marred by a series of high-profile and costly individual mistakes.
Ten Hag is known to want a goalkeeper who can play the ball out from the back with his feet, which De Gea is not capable of doing, and only last month the United boss said he could not guarantee the Spaniard he would be No.1 next season if he stayed.
Against that backdrop, United have already been looking at replacements for De Gea, with Everton and England No.1 Jordan Pickford, Porto and Portugal's first-choice Diogo Costa, as well as Inter Milan's Cameroon stopper Andre Onana all on their short-list.
Defenders Phil Jones and Axel Tuanzebe are among seven players to be released by United, as Ten Hag continues to reshape his squad ahead of the new campaign.