The sportsman is said to have split from Hudson in December (09) after a whirlwind romance.
But the New York Yankees player - nicknamed A-Rod - is now rumoured to have moved on from the actress with another Hollywood beauty after he was spotted partying with Diaz during the Super Bowl festivities over the weekend (06-07Feb10), according to America's OK! magazine.
The publication reports the pair was seen together at Creative Artists Agency's Super Bowl party at the W Hotel in Miami, Florida on Saturday night (06Feb10).
A source tells the publication, "A-Rod and Cameron have been totally hooking up. They were having a great time, (Diaz was being) fun and flirty."