Lazio have completed the signing of Charlton striker Paolo di Canio on a free transfer.
Di Canio signed a new contract with Charlton in June
The veteran had been keen on a return to Lazio, who he played for at the start of his career in the 1980s.
"I would not have settled for anything else," Di Canio told Lazio's website after his transfer was confirmed.
"To wear the blue-and-white shirt again is really special. I have always been a true Lazio fan, even when my career took me a long way from Rome."
Di Canio has been signed to aid the development of Lazio's young players, as well as to provide a reference point for the new, inexperienced coach Domenico Caso.
Di Canio left West Ham in the summer of 2002 to join Charlton, and signed a new one-year deal with the south-east London club shortly before he became aware
of Lazio's interest.
The 36-year-old quit Juventus for Napoli in 1993 and has also played for AC Milan, Celtic and Sheffield Wednesday.