Roma has acquired Argentine striker Pablo Osvaldo in a ?15 million ($21.6 million) transfer from Spanish club Espanyol.

Roma says it has signed Osvaldo on a four-year contract worth a total of ?15.8 million ($22.8 million).

The 25-year-old Osvaldo scored 13 goals in 24 appearances with Espanyol last season and has already played in Serie A with Fiorentina and Bologna.

With Roma's new Spanish coach Luis Enrique still molding his squad, Osvaldo's arrival could pave the way for Marco Borriello's departure from Roma.

Roma faces Slovan Bratislava in a Europa League playoff later Thursday, having lost the first leg 1-0.