Tottenham are in chats with Benfica over an advance arrangement for striker Carlos Vinicius.
The potential understanding is probably going to incorporate an alternative to purchase the Brazilian for around £36m.
Vinicius joined Benfica from Napoli for £15m the previous summer and is viewed as a competent back-up to Spurs striker Harry Kane.
The 25-year-old scored 24 objectives last season and was connected with a large group of Europe's greatest clubs - including Juventus and Inter Milan.
He has shown up this mission, in the Champions League rout by PAOK and the 5-1 win over Famalicao prior in September.
Tottenham lead trainer Jose Mourinho said on Wednesday he was idealistic of marking a striker before the exchange cutoff time closes on October 5.
"I am idealistic, however more than that the feeling that I like is that we are having a go at everything to do it," he said.
"You succeed or you don't succeed. It resembles a football coordinate: you win or you don't win however you give everything and have a go at everything. The exchange market is the equivalent.
"I like the inclination that my club is attempting to thoroughly take care of us and for the group, that is the most significant thing for me.
"On the off chance that we succeed, at that point extraordinary - I accept so - however on the off chance that we don't, at that point that is football."
Celtic have made a methodology for Tottenham left-back Ryan Sessegnon - however it is accepted the funds of any potential arrangement have demonstrated hazardous.
The 20-year-old was exceptionally appraised as a youngster at Fulham yet has battled to break into the Tottenham side since making the move from Craven Cottage for £25m the previous summer.
Sessegnon oversaw just 12 appearances in all rivalries last term and has since been driven further down the hierarchy following the appearance of Sergio Reguilon from Real Madrid.
Various Premier League clubs are likewise observing the England U21 global's circumstance.
Summer move window - key dates and times
The mid year move window shuts down at 11pm on Monday October 5 with a gala of action arranged on Transfer Deadline Day on Sky Sports News and over our Sky Sports stages.
A homegrown just window for bargains between the Premier League and EFL at that point runs from October 5 and closes on Friday October 16 at 5pm. Follow all the news and examination on SSN and across Sky Sports' computerized stages, incorporating with our committed Transfer Center blog.