The Dragons have aggressively targeted the back-rower and their willingness to pay a reported A$550,000 ($663,000) a year for Storm five-eighth Gareth Widdop indicates their financial muscle.
Despite a huge bid, Penrith missed out last week on their prime target Todd Carney, who re-signed with the Sharks. Since that development, they are now expected to focus once again on luring Mateo, who enjoyed success under Ivan Cleary.
While the Warriors remain hopeful that Mateo will choose to re-sign, the offers from the Sydney clubs are believed to be more lucrative and the recently confirmed signing of Sharks second rower Jayson Bukuya looks like a form of insurance policy by the Auckland club (though he could also be seen as a direct replacement for Elijah Taylor).
Mateo and wife Michelle are settled in New Zealand but the desire to be close to their Sydney-based families, especially with their first child expected in September, could ultimately be the deciding factor.