Newcastle United are ready to sign Lyon midfielder Bruno Guimaraes following an agreement in principle between the two teams.
According to reports, the charge will be 40 million euros (£35 million), plus an additional 8 million euros (£6.7 million) in add-ons.
The Brazilian underwent physical examinations while on international duty in South America, and the two clubs are finalizing arrangements before making an announcement.
The 24-year-old will be Newcastle United's third January signing, but the Magpies, who are now third from the bottom of the Premier League, have signed England full-back Kieran Trippier for £12 million and Burnley striker Chris Wood for £25 million.
On Friday, manager Eddie Howe stated that Newcastle were "close" to signing a player, which was interpreted as Guimaraes, and that he "didn't anticipate that would be the end of our interest in bringing in new players" before Monday's deadline.
The club returned from a training camp to Saudi Arabia on Saturday and will face Everton in the Premier League on Tuesday, February 8.
Guimaraes, a defensive midfielder, would bolster a backline that has maintained just two clean sheets in the Premier League this season.