Media reports from Portugal state that Gustavo Sá is preparing to travel to England for his medical before a transfer to West Ham United. Sportwitness reports that West Ham United are nearing the completion of their move for Gustavo Sá. It is also claimed that the player previously rejected an offer from Saudi Arabia, preferring to wait for an opportunity in a more competitive environment.

West Ham have reached an agreement to sign Gustavo Sá from Famalicão. The transfer is considered agreed, according to both V+ and Record. The deal is valued at approximately €20m (£17.3m), although Famalicão had initially hoped to receive €25m (£21.6m) during negotiations. Gustavo Sá is preparing for his first move to a club outside his country. The transfer is set to become the largest sale in the history of Famalicão, exceeding the revenue from the sale of Manuel Ugarte. For more than a year, Gustavo Sá had been linked with Premier League clubs before West Ham accelerated their pursuit and also recently attracted the attention of Manchester City and Juventus.

According to the Portuguese site rr.pt, Gustavo Sá is connected with a potential summer transfer to West Ham United. It is stated that Gustavo Sá worked with Nuno’s new assistant manager, Rui Pedro Silva, in 2021, at which time Silva gave Sá his senior debut at Famalicao. It is suggested that Silva could have been involved in bringing Sá to West Ham. The transfer is described as an apparent imminent addition to West Ham United’s squad. Local media have given Gustavo Sá the nickname 'Famalicão’s Golden Boy'.

Reports from Portugal state that Gustavo Sá is set to become West Ham's first signing of the summer. Gustavo Sá has recently become represented by Jorge Mendes. The transfer is being discussed as a potential first signing following the appointment of Nils Koppen as recruitment chief at West Ham. It is also mentioned that Nuno Espírito Santo's relationship with Jorge Mendes may be a factor in the transfer.