Doncaster have made forward Dany N'Guessan their sixth summer signing.
Tottenham have confirmed that Romanian defender Vlad Chiriches has completed a move to Napoli.
Genk winger Yassine El Ghanassy, who has been on loan at West Brom, has made another temporary move to Dutch side Heerenveen for the remainder of the season.
The 22-year-old winger linked up with Albion on a season-long loan last summer but has been limited to three cup appearances.
The Baggies have been given permission by El Ghanassy's parent club to loan him on to Heerenveen, although they retain their option to make the Belgium international's move permanent.
Albion sporting and technical director, Richard Garlick said: "Due to the team's progress this season, Yassine has found first-team chances hard to come by.
"We feel it is in everyone's best interests to allow Yassine to go out on loan and get some games under his belt."