MAGAYE Gueye has become Millwall's fifth summer signing.
The Lions have agreed terms with the 24-year-old on a one-year contract with the option of a 12-month extension in the club's favour.
Boss Ian Holloway had been tight-lipped on his interest in the Frenchman in fear of alerting other clubs to his availability, with Bournemouth closely monitoring the situation.
Gueye did not feature in Millwall's 2-2 friendly draw with Stevenage last week, prompting fears from supporters that the attacker was no longer on trial with the club.
But the ex-France U21 international was actually at the Lions' training ground on the day of the game working on his fitness.
In his final season at Everton, Gueye made just one first-team appearance – so he will need several more weeks of conditioning before he can feature for the Lions.
Holloway also revealed that Gueye has been plagued by off-field issues in recent years.
Speaking a fortnight ago, he said: "I liked our conversation we had when he first came over but I didn't like how he played last year.
"Sometimes people have issued and problems with their families and unfortunately his off-field life affected him on the field."
Meanwhile, Millwall will not be offering a deal to trialist Martin Mutumba.