Inglis returned home yesterday from the Kangaroos' Four Nations triumph in England still coming to terms with his ''ultimate'' 2009 season.

In addition to winning the NRL premiership with Melbourne, Inglis was a key figure in Queensland's record-breaking State of Origin series win and an integral member of the Kangaroos side. His slew of individual honours includes the Golden Boot as world player of the year, Four Nations player of the tournament and Queensland's Origin man of the series.

Throw in the Dally M centre, representative player of the year and international centre of the year and there can be no doubt the 22-year-old is the world's best player.

It's a year which compares favourably with Darren Lockyer's fabulous 2006 when he captained Queensland's Origin win, Brisbane's NRL premiership and Australia's Tri Nations triumph, scoring the winning try in extra-time in that final.

Inglis gave no indication of resting on his laurels when he arrived at Sydney airport yesterday.

''[It] the Golden Boot was a good way to end the year, a pretty big year for myself,'' Inglis said. ''I think there's still a lot of improvement in my game, just little areas.''

Pressed on what those areas were Inglis said, ''Just behind the scenes, I've just got to put my head down.''

Kangaroos coach Tim Sheens hoped Inglis would save his improvements for Australia and spare his own Wests Tigers team.

''He's young and he's keen and he's fit, there's every reason to say the more experience he gets the better he will be,'' said Sheens, who also felt Inglis should not shift from the centre position he dominates.

Inglis's club, state and national teammate Cameron Smith was looking forward to seeing what more the back-line superstar had in store.

''It's a great thing for us but I think a lot of people forget that he is only a young guy, he's 22, he's got a lot of improvement left in him,'' Smith said. AAP