Everton have agreed a £33.7m deal to sign Lille midfielder Amadou Onana.
PA news agency understands the 20-year-old Belgium international must pass a medical before signing a five-year contract.
He will likely be in the stands at Goodison Park to watch Saturday’s home game against Chelsea.
Onana will provide a much-needed option in midfield, with area manager Frank Lampard looking to strengthen further with a deal to bring back former Toffees player Idrissa Gana Gueye from Paris St Germain.
West Ham were also interested in Onana but Everton beat their Premier League rivals to his signature.
A more pressing issue for Lampard, however, is how to resolve his attacking crisis ahead of their Premier League opener, with Dele Alli a potential short-term fix.
Dominic Calvert-Lewin is out for six weeks with a knee injury and striker Salomon Rondon is suspended for visiting Lampard’s former club, while Richarlison has been sold to Tottenham.
Alli has started just once since leaving Spurs in January, but Lampard said: “Dele has made a name for himself as a second striker, in my opinion, with Harry Kane at Tottenham.
“They’ve had some great years together. He can be moved back over the years, usually to become more of a number eight or a more structured midfielder.
“But he is certainly in the running as a solution.”
Everton avoided relegation to the Championship on the penultimate matchday of last season after coming from two goals behind to win at Crystal Palace.
Dwight McNeil, James Tarkowski and Ruben Vinagre have strengthened Everton’s squad for the new campaign.
But Lampard, who took over from the sacked Rafael Benitez in January, warned his side needed to improve to avoid further relegation.
“We have to work on all aspects of our game to be sure that we are not in a situation like the one we had last season,” said the 44-year-old.
“It’s good to have a relative clean slate. I never felt we had that during my time at the club and that’s important because it should hopefully give us a new idea and a sense of confidence.
“We’re all level, whereas last year it felt like we were chasing at times, especially if you’re five points from safety. It’s something we’ve overcome and it’s a testament to the group of players we have, the club and the fans.
“There are still things I want us to do in the future to try and get us to play more like I want us to play – to be more consistent in what we can deliver.
“It will be a mixture of work on the training ground and players with whom we can hopefully strengthen the team.
“We are working on and off the pitch and trying to improve the club in every way possible. There are a lot of good people at the club, but we have to have the right culture and move forward. We have to keep this unified feeling that we have.