The twenty-four year old French forward has long been desired by Everton and it looks increasingly likely they will get their man at last, making him the club's third signing of the summer so far.
After Tim Iroegbunam and Jack Harrison - back for a second loan spell - Ndiaye adds further much-needed attacking options to Sean Dyche's squad for next season.
His arrival - once it has been fully confirmed of course - represents good business for the Blues with a quoted fee of around £15 million for the former Sheffield United player.
Ndiaye can play in several different attacking positions - whether wide, up front or behind the main striker - giving Dyche greater flexibility in attack and hopefully too ensuring his team will score more goals next season.
On that point, Ndiaye has not exactly set the French league on fire during last season's sojourn with Olympic Marseille, only scoring four goals for the famous club.
He has though been more prolific in English football, albeit in the Championship, and so if he does become an Everton player, let us hope he can rediscover that form in front of goal.
The moves for Ndiaye have been going on for a week or so and as the rumours about his transfer continued, there was the unexpected news that the Toffees were also interested in bringing Newcastle United's Yankuba Minteh to Merseyside.
That deal though seemed increasingly contingent on the Magpies moving for Dominic Calvert-Lewin - who they were allegedly desperate to sign - as the Blues couldn't afford his fee outright.
Then as all this seemed to be moving forward, Newcastle suddenly withdrew from any deal for Calvert-Lewin and that essentially torpedoed any hopes of Everton getting Minteh.
While this was going on, Minteh had supposedly agreed terms with one of the clubs interested in him and was particularly keen on a move to Everton.
His move though now seems all but over. However, despite this he apparently still remains determined to make a move to Goodison Park.
It appears Everton will have to move onto other targets if they want more attacking threat, which I believe they certainly need.