Former Lazio boss Delio Rossi feels his old club are now superior to city rivals AS Roma.
Both clubs were very active in the transfer market over the summer, but they showcased different buying philosophies.
"Lazio are ahead of Roma, they are more proven as a team right now," continued the ex-Palermo Coach.
"They kept hold of their tactician and then signed players which boss Edy Reja requested.
"However, the future belongs to Roma. They are a younger outfit. To summarise, Lazio are the side of today, Roma are the team of tomorrow."