He regularly tops the NRL's offloading charts, and has made 18 so far in nine games this season, is the second-highest metre-eater at the club behind Ben Matulino with 804m and has made a club-leading 107 hit-ups. But that is countered by 15 missed tackles and eight errors and he can go missing in matches.
His form this season has so far been patchy, something he's at a loss to explain, and it has not gone unnoticed by pundits and fans.
"I think I'm getting there,'' he said. "Looking back on my career, I probably blossom at the end of seasons. It's something I need to address. I have probably just realised it this year. I have had a slowish start to the year but I'm not sure how I fix it or what I do. The longer the season goes on, the more comfortable I will feel and I think people will see better footy from me.''
It will help getting his future sorted. Mateo and his wife Michelle are expecting their first child in September and the couple were tempted to return to Australia to be closer to family.
"I want to go home, I want to stay here, there's so much to weigh up,'' he said before announcing his decision to stay.
Coach Matt Elliott hopes Mateo can reproduce the sort of form that convinced him to offer the second-rower a new three-year deal.
"Feleti, by his own admission, has not played the sort of footy or been the influence on the team he knows he's capable of,'' Elliott said. ``There have been some distractions over his future... but I'm a Feleti fan and believer.
"My expectations of Feleti are really high. [I know fans have high expectations] but I think that's fair. He should want that expectation and his job is to deliver it.''
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Feleti Mateo
Age: 29
Position: Second row
NRL games: 149
Clubs: Eels (2004, 2007-2010), London Broncos (2005), Warriors (2011-)
Rep honours: Tonga (7 tests), City Origin, NRL All Stars, PM's XIII