SENNE LAMMENS defied his own “sceptical” brother’s stern warning against joining crisis club Manchester United.Instead, the young Belgian shot-stopper said he achieved “a childhood dream” after joining United for £18.2million from Royal Antwerp on transfer deadline day.Shutterstock EditorialSenne Lammens joined United on deadline day[/caption]Shutterstock EditorialLammens was named on the bench for United’s 3-0 hammering at City[/caption]Lammens, who was benched for the 3-0 derby drubbing, is considered a project keeper by the United hierarchy, who favoured him – and his reduced fee – over Aston Villa star and World Cup winner Emi Martinez.But Lammens’ big brother was left concerned that his sibling’s name would be etched into a long list of rising stars who often suffer under the self-fulfilling prophecy of career ruin at Old Trafford.And the 23-year-old’s relative Tom, a striker for DT Borsbeke in the Belgian sixth division, always thought Turkish giants Galatasaray were a better fit.Tom Lammens told Belgian outlet Het Nieuwsblad: “There’s a lot of quality, you play for trophies there [at Galatasaray]“And Senne could perhaps immediately make his mark in the Champions League.“I was initially sceptical about a move to United, because many players there had already succumbed to the pressure and couldn’t reach their full potential.”Players like Antony, Scott McTominay, Anthony Elanga and Álvaro Carreras failed to reach their peak performance at United, with all of them going on to shine elsewhere.And Ruben Amorim, who only has the FA Cup to play for this season, recently said: “We are in that moment where it is hard to be a Manchester United goalkeeper.”BEST ONLINE CASINOS – TOP SITES IN THE UKBefore the start of the season, Amorim said United would not be signing a new goalkeeper but Altay Bayindir and Andre Onana’s early struggles forced a drastic rethink.Tom added: “Ultimately, it was Senne who had to make the decision. United gave him the best feeling. “Partly because Tony Coton, United’s goalkeeping scout, had been following him for almost a year and was very convinced of his qualities.“It would also be great if the club could return to its former glory and if Senne could contribute to that.”Lammens’ arrival prompted former No. 1 Onana to join Trabzonspor on loan. And with Bayindir conceding seven goals in his first four games, the Belgium Under-21 international could make his debut when Chelsea visit on Saturday.Meanwhile, club legend Wayne Rooney expressed concerns that Lammens might have been a “panic buy” after the young keeper broke onto the European scene in his first full season last term. Man Utd ratings vs Man City: Mbeumo forces wonder save from Donnarumma but that’s as good as it getsMANCHESTER UNITED’S miserable start to the season continued after they were brushed aside by neighbours Man City.Ruben Amorim’s side were unable to come back with a bang after the international break, falling to a 3-0 away defeat.Phil Foden opened the scoring for City after just 18 minutes with a glancing header that gave Altay Bayindir – keeping his spot despite the arrival on Ssnne Lammens – little chance to stop.While Erling Haaland did what he does best by bagging a second-half brace to put the hosts out of reach.United now sit 14th in the table, with City leapfrogging them with their second win of the season.Here’s how SunSport’s Katherine Walsh rated each Man Utd players performance…