Kevin Nolan fears Newcastle United’s lack of ‘Premier League proven’ signings could come back to bite them.The Magpies have already spent over £140million on five new first-team additions this summer.Nolan has expressed fears over Newcastle’s summer transfer businesstalkSPORTGoalkeeper Lukas Hornicek became the latest arrival on Monday as he completed a £25.7million move from Braga.The 24-year-old is the only Newcastle signing during the current window aged older than 21.Fellow fresh faces Bazoumana Toure, Aladji Bamba, Sean Steur and Ewen Jaouen are all 20 or younger.Meanwhile, Sandro Tonali and Anthony Gordon were both sold earlier in the summer and could be followed out the door by Bruno Guimaraes.Eddie Howe has also left his role as manager, with Matthias Jaissle set to be named as his successor.Nolan fearsNolan has now raised concerns over the club’s transfer business, with none of the signings having previous experience of English football.The former Magpies captain joined Alex Crook live on talkSPORT on Monday morning.Discussing his old club’s incomings, Nolan admitted: “The biggest thing for me is that a lot of these lads who are coming in are not Premier League proven and I think that’s always a problem.“When you have too many, sometimes it can come back and bite you.“So I feel like in the next couple of weeks we will hopefully see that they’re going to get some players in who are going to help them young lads to be able to settle into which is the best league in the world.Signings without Premier League experience, such as Steur, concern NolanGetty“You can only do that when you’ve got the experience of doing it, being in it week in, week out.“I’ve spoken about it on the show before, when these lads come over from the Holland’s, Germany’s, Spain’s and France’s, they find it really difficult because of the intensity and the mentality.“What’s needed to go and keep going again and that’s one thing which they won’t be used to at all.”Newcastle latestIt has been a summer of change so far at St. James’ Park following last season’s 12th place finish.Newcastle missed out on European football by four points as a result, having played in the Champions League during the 2025/26 campaign.As well as Howe’s departure, further players could still leave the club before the end of the transfer window.Jaissle is set to succeed Howe in the dugout ahead of the new seasonGettyNewcastle United's summer transfer businessInBazoumana Toure (Hoffenheim) – £43mAladji Bamba (Monaco) – £34mLukas Hornicek (Braga) – £25.7mSean Steur (Ajax) – £23mEwen Jaouen (Reims) – £18mOutSandro Tonali (Tottenham) – £100mAnthony Gordon (Barcelona) – £70mKieran Trippier – ReleasedEmil Krafth – ReleasedJohn Ruddy – ReleasedMatt Targett – ReleasedJoe White (Crewe) – UndisclosedHarrison Ashby (Luton) – LoanGuimaraes has informed the club of his desire to join Premier League champions Arsenal.The Gunners have seen their opening offer for the midfielder rejected but talks continue between the two clubs.Manchester United have also shown interest in left-back Lewis Hall.Newcastle begin the new season at home to Liverpool on Sunday, August 23.