Kaka is keen to see compatriot Neymar establish himself as the "heir" to Lionel Messi and Cristiano Ronaldo as he backed Brazil as favourites for the World Cup.
The South American giants head to Qatar in search of their first crown since victory in 2002, when Kaka was part of the squad, following 20 years of European dominance on the world stage.
Brazil are seen as leading contenders at Qatar 2022, alongside arch-rivals Argentina, with Kaka highlighting the fact that it is likely to be Messi and Ronaldo's last tournament.
Neymar, now 30, could have at least one more World Cup appearance in his locker before he hangs up his boots, and Kaka is keen for the Paris Saint-Germain forward to follow Messi and Ronaldo's lead at the pinnacle of the game.
"The different time in the calendar, the temperature, the lack of travel and the possibility to start recovering right away are all factors that will play a role. The champions will be in top shape in my mind," he told Gazzetta Dello Sport.
"In theory, it will be the last one for Lionel Messi and Cristiano Ronaldo. I'm curious to see their impact. They will try to prove that they are still leaders.
"I'd like for Neymar to be anointed as their heir in this occasion considering his talent, and the person and player he has become."
20 - Neymar has been directly involved in 20 goals for PSG in the Ligue 1 this season (11 goals, 9 assists), one more than he was in 22 appearances for the club in 2021-22 (19). Leap. pic.twitter.com/uER0XPtC7T— OptaJoao (@OptaJoao) November 6, 2022
Kaka also explained why he feels Brazil are confident of victory, while adding that he fancies Serbia to cause a stir.
"Brazil is the favourite because they have been working in on it for a long time. It was right to appoint Tite, and the group has the correct mix of youth and experience," he added.
"The other top contenders are Argentina and France, while Serbia might be a surprise."
Brazil begin their campaign against Serbia on November 24, before then tackling Switzerland and Cameroon in their other Group G contests.