Argentina striker Pablo Osvaldo has completed his move to Roma from Espanyol.

Osvaldo underwent a medical on Thursday in the Italian capital before signing a four-year contract with the Giallorossi.

Osvaldo joins the Serie A outfit in a reported €18 million (£15.9million) transfer deal from Espanyol.

''I am very happy to be here,'' said Osvaldo. ''I have chosen Roma because it is a great club. For me it is an honour to play alongside (Roma captain Francesco) Totti.''

Osvaldo has plenty of experience in Serie A having played for Atalanta, Fiorentina, Lecce and Bologna before joining Espanyol in 2010. He scored 20 goals in 44 appearances for the Barcelona club.