Fiorentina monitoring Atletico Madrid striker
The Viola are well known to be after a striker to strengthen their squad and have been linked with Marko Arnautovi? of Werder Bremen as well.
According to Fichajes.net, Fiorentina have been monitoring 24-year-old Costa this season and could make a bid in the summer.
Costa has made 22 appearances in La Liga this season, scoring six goals.