However, Spurs boss thinks there is "no doubt" that former Spurs stalwart succeeds under Pep Guardiola.
Luiz moved to CIty from the Brazilian club Vasco da Gama this summer.
Pep Guardiola faces fight to keep highly-rated winger also being tracked by Arsenal and Tottenham.
Tottenham have not made any moves in the transfer market so far.
Frenchman reiterates the former Barcelona forward will stay at the Emirates Stadium.
Manchester City have completed five signings compared to United's 2.
Van Dijk is attracting interest from Liverpool, Manchester City and Chelsea.
Sanchez has entered his final year in contract with Arsenal.
Sport says that the La Liga giants are now considering making an offer to sign the Frenchman.
Former Gunners forward Alan Smith sees Sanchez as a 'big shadow' over the Emirates Stadium.
Instagram post reveals the Manchester City target is feeling unwell just days before his return.
Danilo was heavily pursued by Chelsea.
Sancho has already rejected a 3-year deal worth £30,000-a-week at City.
Vadim Vasilyev adamant that French international and Fabinho are not leaving the principality.
Exclusive: United aware that Bale is not looking for a move away from the Spanish capital.
City have reportedly denied making an eye-watering £143m bid for AS Monaco wonderkid.
Manchester City have reportedly spoken to Kylian Mbappe.
Mbappe will not join Real if he has to play alongside Ronaldo, Bale and Benzema.
The former Chelsea star thinks his fellow Frenchman has his heart set on a move to Spain.
Sanchez, 28, is keen to reunite with City boss Pep Guardiola.
Sancho has rejected an opportunity to sign a new contract at City.
The 23-year-old has signed a five-year deal at the Etihad.