I just read the following article on channel4 and thought I might as
well post it here. The whole article is very speculative and I'm not
sure what to make of it. I wouldn't and obviously couldn't say that
a possible return to Lazio is out of the question but I still think
that it is unlikely to happen in the next couple of seasons as his
agent predicts.
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Lazio return for Nesta, says agent

Milan defender Alessandro Nesta will end his career at hometown club
Lazio, his agent has confidently predicted.

The Italian international stopper was considered as a Lazio symbol
after graduating through the youth ranks and winning the Scudetto
with the side in 2000.

He was tipped to be a one-club man before the outfit's severe
financial difficulties saw him leave the capital for Milan in August
2002.

But Vincenzo Morabito has revealed that Nesta could one day return
to the club which is unquestionably in his heart.

"Nesta's proposed reunion with Lazio is more than a hope," Morabito
told Italian radio station Radio Incontro.

"I'm convinced that in two years, or possibly even at the end of
next season, that this move could happen.

"It would allow Nesta to end his playing days in Rome and allow
Lazio to aim for some bigger objectives."

It's unclear how some sections of the Biancocelesti public will
react to the possibility of a Nesta comeback.

Although he remains one of Italy's top defenders, he has been jeered
on his return to the Olimpico with the Rossoneri.

http://www.channel4.com/sport/football_italia/may11e.html