Bournemouth have completed the signings of Ukraine centre-back Illia Zabarnyi and Ivory Coast midfielder Hamed Traore.
He has signed a five-and-a-half-year deal at Vitality Stadium.
Traore, 22, has joined from Sassuolo on an initial loan which will become a five-year deal in the summer for a fee in the region of £20m.
The midfielder, who becomes Bournemouth's sixth January signing, has played 11 times for the Serie A side this season.
Bournemouth had already signed forward Antoine Semenyo for £10m, winger Dango Ouattara for around £20m and goalkeeper Darren Randolph this month, while Uruguay full-back Matias Vina joined on loan from Roma.