Wigan Warriors head coach Shaun Wane says captain Sean O'Loughlin is one of the best players he has worked with as he prepares to make his 350th appearance for the club.
The 32-year-old will reach the landmark if he plays on Sunday at Huddersfield.
He made his debut in 2002 and has led his hometown club for five years.
"He's one of them, I wouldn't like to name one but he's up there," said Wane, when asked if the England skipper is the best player he has coached.
He told BBC Radio Manchester: "He's a great individual, smart, easy to coach, ultra critical of himself and a massive lesson to young kids who come up here arrogant and think they've done anything.
"That's why people like Ryan Hoffman and Brett Finch go over to the NRL and the one player they mention is him.
"It's the fact that he's very humble which makes him special."
Wane also reacted to the news that Super League voted in favour for a marquee player in 2016, and felt it would help stop player moves to Australia's National Rugby League and also from switching codes.
"What I'm finding is that people that go over there to rugby union it's not always the best move they've made," added the 50-year-old.
"Joel Tomkins couldn't wait to get back as he loves it at this club and rugby league.
"If the marquee player rule can help us keep hold of some of our top players then great."