They were joined by other footballers, such as Diogo Costa, Jose Sa, and Joao Mario, as well as the coach of Estoril, Ian Cathro, and players from Penafiel, the club of Diogo Jota's friend Andra Silva.
Earlier in the week, Alisson had been unable to attend Diogo Jota's funeral, but he and Diaz paid their respects to their teammate in another way.
On Wednesday, a memorial mass was held for Diogo Jota at the Gondomar Parish Church, where around 100 people gathered to pay their respects.
As a tribute to Diogo Jota, Liverpool will be paying their respects during their friendly match against Preston North End at Deepdale.
The match will be broadcast for free, and both teams are expected to take part in a special tribute to the Portuguese international.
Throughout the afternoon, players and fans will remember Diogo Jota, who was loved by everyone in the football world.
Special tributes will be made to the number 20, which was Diogo Jota's jersey number.