Newcastle midfielder Bruno Guimaraes set to join Arsenal in 80m dealNewcastle United have reached an agreement with Arsenal over the transfer of midfielder Bruno Guimaraes in a deal worth up to 80 million, ESPN reports.The Premier League champions have agreed to pay an initial 70m, with a further 10m tied to performance-related bonuses.The move is expected to be completed once the final formalities are finalised, with Guimaraes set to sign a long-term contract with the North Londoners.The 29-year-old is also set to undergo a medical on Monday before the transfer is officially announced.Newcastle have been picked apart this summer, with Guimaraes the latest key figure on the way out of St. James Park in what has been a chaotic transfer window for the Magpies.They had already lost Anthony Gordon to Barcelona and Sandro Tonali to Tottenham Hotspur before manager Eddie Howes shocking departure was announced.With Guimaraes on his way out, Newcastle will need significant investment to rebuild an already depleted squad to boost their chances of competing at the top end of the table this season.Theyve already sorted out their managerial dilemma, with Matthias Jassle set to replace Howe.Guimaraes desire to join Arsenal reportedly played a huge role in helping the transfer move forward, while Newcastle were prepared to consider offers after missing out on Champions League football.The Brazilian has been a talismanic figure for Newcastle since joining from Olympique Lyon in January 2022 in a deal worth around 40m.Over the past few years, he has established himself as one of the teams leaders and a fan favourite.Hes also considered one of the best midfielders in the Premier League, which explains why Arsenal were ready to pay a premium fee to secure his services.Despite missing two months of last season through injury, the Brazilian still finished as Newcastles top Premier League goalscorer with nine goals.Hed become Arsenals third signing of the summer, following the arrivals of Greek winger Christos Tzolis from Club Brugge and goalkeeper Illan Meslier, who joined on a free transfer after leaving Leeds United.