Atlanta, June 29 -- Lionel Messi will be pitted against his former club and the reigning European champions in the last 16 of the Club World Cup.

Inter Miami against Paris St-Germain here on Sunday is expected to attract one of the biggest crowds of the tournament so far, with the Messi factor a large reason.

There was huge controversy about how Inter Miami and Messi entered the expanded new-look tournament.

Fifa granted, in a one-off rule, a host-nation slot to a US club for this expanded 32-team edition.

And instead of MLS Cup play-off winners LA Galaxy, they chose Inter Miami, who are the 2024 MLS Supporters' Shield winners by virtue of having the best regular-season record.

But, despite the pre-tournament scepticism, Inter's unbea...