Luciano Spalletti's side have confirmed the signing of the 32-year-old midfielder, who moves to the San Siro from fellow Serie A club Fiorentina
Borja Valero has signed for Inter Milan, with the midfielder completing his acrimonious move from Fiorentina for a reported fee of €7million.
Valero wrapped up his switch to San Siro on Monday after passing a medical at his new club, the 32-year-old moving on from Fiorentina in bitter circumstances after five years with La Viola.
Fiorentina previously indicated the club is considering legal action against Valero over an audio message from the Spaniard that was released on social media.