He's scored nine goals in 15 games plus two in five Europa League appearances.
â€śI am truly happy in Rome, as Lazio were what I had been looking for,â€ť said the 33-year-old.
â€śIn this period I trained really hard and this is why I scored so many goals. I feel good psychologically and physically, while I get on perfectly with Coach Edy Reja.
â€śI donâ€™t want to give myself compliments, though, because I still really want to improve. If the fans have nicknamed me Kaiser than Iâ€™m happy, as such an important name means Iâ€™m doing well.
â€śEuro 2012 is the big objective I have in mind for next year, but itâ€™s not the only one.â€ť