Liverpool are being linked with a move for Porto midfielder Fabio Vieira.
The Reds have already had transfer business with Porto, having signed Luis Diaz in the January transfer window. Liverpool agreed a £49m deal with the Portuguese club to bring the Colombia international to Anfield.
Now, according to a report in the Sunday Mirror, Liverpool could be about to do further business with Porto. It has been claimed that the Reds have reached an agreement to have the first refusal to sign attacking midfielder Vieira.
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This would mean that were any other club to come in to try and sign Vieira, Porto would then be required to inform Liverpool and offer them the chance to sign the player instead. Arsenal have also been credited with an interest in Vieira.
It has been claimed that Vieira has a £12.7m release clause in his contract, with Porto said to be open to letting him go at the right time. However, were Liverpool to make a move then they would apparently need to pay more money in performance-related add-ons.
Vieira has been in fine form for Porto this season, having recently helped the club with the Portuguese top flight title. He has scored seven goals and registered 15 assists this term, and is widely regarded as one of the brightest young talents in Portugal.
Liverpool have already reached an agreement to sign young playmaker Fabio Carvalho from Fulham. The 19-year-old will formally become a Liverpool player on July 1, after a £5m sum was agreed with a further £2.7m in add-ons and a 20% sell-on clause has been inserted into the deal.