Born in Milan, Carlo played for AC Milan, Como, Prato, Lazio and Castel di Sangro in Italy before joining Chelsea in 1999 and then switching the Bridge for the Lane in January, 2009.
The goalkeeper knows both Italy and England inside-out - and Carlo admits he cannot split the two nations ahead of Sunday's huge tie in Kiev.
"In a way, the path both teams are following is similar," said Carlo, who played 11 cup games for us last season.
"England have a few young players at this tournament like Chamberlain and Welbeck and Italy did the same - after the disastrous World Cup in South Africa, they decided to change from the old guard and bring on new players.
"Both teams started the tournament not necessarily with low expectations, but definitely not as favourites.
"Both have managed to get through the group, for England that was easier than Italy and I think it will be a good game on Sunday.
"Tactically, Roy Hodgson likes a 4-4-2 and Italy started with three at the back (3-5-2) but in the last game they switched back to 4-3-1-2 which got them through qualification. I guess they will stick with that now. It’s a system they know better.
"The teams are getting more confidence the more they play and I’m looking forward to it, I'm sure it will be a close game. It’s too tough to call!"