LIVERPOOL are interested in ex-Manchester United star Alvaro Carreras, according to reports.The left-back switched the Red Devils for Benfica in a £5million deal back in May.Alvaro Carreras is wanted by Liverpool just months after leaving Man UtdCredit: GettyErik ten Hag is under immense pressure after Man Utd’s poor start to the seasonCredit: GettyBut just five months after his transfer, Spanish outlet AS claim he has caught the eye of Liverpool.Carreras’ contract at Benfica runs until 2029 and there is thought to be a release clause that Arne Slot’s side could trigger – though the amount is unknown.The 21-year-old spent the second half of last season with the Portuguese giants on loan.He previously had loan spells at Granada and Preston.READ MORE IN FOOTBALLCarreras never made a first-team appearance for Man Utd – but he was named on the bench for several Premier League games.He was highly-rated at the club, winning the Under-23s player of the season award in 2022.Erik ten Hag’s side have had a nightmare start to the season and left-back has been a problem position amid Luke Shaw’s injury.It makes the decision to let Carreras go even stranger, with one supporter saying: “We are very stupid as a club.”Most read in FootballFOOTBALL FREE BETS AND SIGN UP DEALSAnother added: “With our issues at left-back we went ahead and sanctioned a move for the only fit left-back.”Meanwhile, reports in Portugal state that Man Utd have a buy-back option in Carreras’ contract.A day in the life of workaholic Ten Hag revealed by ex-Man Utd coach who jokes ‘his wife is on verge of divorcing him’Why NOBODY is the right man to replace Erik ten Hag at Man UtdSunSport’s DAVE KIDD says Erik ten Hag’s time at Man Utd is up… and explains what’s wrong with all the potential candidates to replace him.THIS is a mid-table squad at an underachieving club, with a lot of unwanted players on big money.And Ratcliffe is an instinctive cost-cutter who may not pay top dollar to the next manager.If this club wasn’t called ‘Manchester United’, it wouldn’t be an especially desirable job.The good news for United is that their new sporting director, Dan Ashworth, is a very decent judge of a manager.He has been instrumental in three previous managerial appointments — Gareth Southgate for England, Graham Potter for Brighton and Eddie Howe for Newcastle.None were wildly popular at the time, all were conspicuous successes.Interestingly, Ashworth’s No 1 choice for the Newcastle job was Unai Emery, who turned him down to stay at Villarreal but has since proved that judgment right by excelling at Aston Villa.Emery may well deliver the coup de grace to Ten Hag on Sunday — especially with Bruno Fernandes suspended and Kobbie Mainoo an injury doubt.And the Spaniard would be an excellent fit for United — yet there is next to no chance that he would abandon Villa’s Champions League campaign to take the Old Trafford job, not least because he isn’t a stark raving madman.Howe would be another good candidate to succeed Ten Hag but, although he has become frustrated on Tyneside, the Saudis would surely not allow Ratcliffe to poach Howe, as they reluctantly did with Ashworth.Potter is available but his Chelsea experience and lack of charisma would make him a tough sell.Which brings us to Southgate, who remains close with Ashworth and is an excellent man-manager who was seriously considered by United last spring.Yet, despite having led England to two of their three major finals, Southgate’s reputation for over-caution was only enhanced during the Euros.Mauricio Pochettino, passed over twice by United, is out of the equation having taken the United States job.Thomas Tuchel would be a popular and gettable option but, despite being a fine coach and a very engaging man, he is considered something of a loose cannon.Likewise, Roberto De Zerbi, now at Marseille after his brief Brighton stint sparkled then fizzled out.Kieran McKenna — a gifted former United coach who has won back-to-back promotions with Ipswich Town — is an intriguing candidate but the imminent vacancy may come a year or so too soon.Marco Silva, the extremely under-rated Fulham boss, has been on United’s radar and should not be discounted.Sporting Lisbon’s Ruben Amorim, last season’s ‘next big thing’, was passed over by West Ham as well as Liverpool this summer and is not an easy man to pin down.Zinedine Zidane, who has taken over from Alan Curbishley as a 20-1 shot for every Premier League job, is a ‘figurehead’ manager and not an Ashworth type.Ruud van Nistelrooy, the former United goal machine who joined Ten Hag’s coaching team in the summer is the bookies’ favourite. Simply because he’s in the building and he’s Dutch.So, yes, getting rid of Ten Hag is the easy part. More