Jürgen Klopp said he “could not be happier” after Liverpool completed the signing of Luis Díaz from Porto in a deal that could rise to €60m (£49.9m). The club are also in talks with Fulham over the potential £5m purchase of the attacking midfielder Fabio Carvalho. Díaz has signed a contract to 2027 and will wear the No 23 shirt for Klopp’s team. The Colombia international underwent a medical in Argentina, where he is preparing for a World Cup qualifier on Tuesday, Liverpool having sent medical staff after agreeing terms with Porto and the player on Thursday. Díaz will cost an initial €40m with another €20m payable in add-ons. In total, that will make the 25-year-old the fourth most expensive signing in Liverpool’s history after Virgil van Dijk, Alisson and Naby Keïta. Klopp has been a long-time admirer of the gifted winger, who has scored 14 goals in 18 league games for Porto this season, and had planned to move for the player this summer. Once the Portuguese club accepted a similar deal from Tottenham, however, Liverpool brought forward their plans with outgoing sporting director Michael Edwards and his assistant, and eventual successor, Julian Ward securing the transfer. “I could not be happier that we’ve been able to get this deal done and bring Luis to Liverpool,” said Klopp. “We believe he has everything needed to fit into our way and adapt to the Premier League, both physically and mentally. He is a player who is hungry for success and knows you have to fight to get what you want. He is a fighter, no doubt. He’s a skilful team player who has always the goal in mind. This team deserved to add quality and when we played against Luis earlier this season, we saw what a danger he is, how fast he is and how his mentality was to help his team. “We know Porto is an outstanding club who nurture players in the best possible way and provide a brilliant football education. They are a class club and, I have to say, have been tough negotiators. I also must make clear my appreciation to our ownership and football operations team for how they have managed to act so decisively to get this done.” Díaz still requires a work permit to enter the UK and is therefore unlikely to join up with his new club until the end of the week at the earliest. He scored 41 goals in 125 appearances for Porto in total and had also been of interest to Manchester United. Everton also tried to sign the winger last summer but were unable to agree a deal that included James Rodríguez returning to his former club. Carvalho, a 19-year-old England youth international born in Portugal, has been in outstanding form and is regarded by Liverpool as a player of huge potential. He is out of contract in the summer and Liverpool are seeing whether agreement can be reached on a deal that would see him remain at Fulham for the remainder of the season and move to Anfield in the summer. The failure to complete a deal for Díaz is the latest blow to Spurs, who also missed out on Adama Traoré to Barcelona, but they have deals in place to sign the midfielders Dejan Kulusevski and Rodrigo Bentancur from Juventus. Kulusevski is due to join on an 18-month loan with a mandatory purchase for about €40m, plus add-ons, if Antonio Conte’s side qualify for the Champions League and the Sweden international has made a specified number of appearances. Tottenham have agreed to pay a loan fee of about €5m for Kulusevski, and that amount would be subtracted from the total payable to make the deal permanent. The 21-year-old can play on the wing or as a No 10 and has been more in than out of the starting XI this season. He cost Juventus €35m from Atalanta in January 2020. Spurs also had offer accepted for Bentancur which would guarantee Juventus €19m, with up to €6m in add-ons to follow. That comes days after Aston Villa had a similar offer for the Uruguay international rejected by the Italian club, who have Denis Zakaria lined up to join from Borussia Mönchengladbach as Bentancur’s replacement. The Tottenham managing director of football, Fabio Paratici, spent 11 years at Juventus. Paratici is also working to move players out. A deal to take Bryan Gil on loan to Valencia has been done and Paratici is also hopeful that solutions can be found for Tanguy Ndombele and Dele Alli. Lyon are in such advanced talks for Ndombele that the player flew to the French city on Sunday in anticipation of returning on loan to his former club with an option for a permanent transfer. Villarreal are interested in taking Giovani Lo Celso on loan and Ajax have not given up hope of signing Steven Bergwijn. As Liverpool prepare to say hello to two players, they could be temporarily saying goodbye to another with 20-year-old defender Neco Williams wanted by Bournemouth on loan until the end of the season. The Wales international could be open to joining the Championship club as he looks to secure more regular football ahead of the World Cup later this year. Williams has featured for only 387 minutes across eight appearances for Liverpool who also have Northern Ireland international Conor Bradley to provide cover for Trent Alexander-Arnold at right-back.