I think the key point is that McFlynn has never left Sydney on loan. I.e. He has only worn their shirt since their inception.
So "The World Game" is technically correct...
But IMHO it's kind of pathetic...
I think Hutchinson* is the best example. Even Archie Thompson** is better in my opinion. But they both left their clubs on loan for several months...and they both missed matches.
But I prefer 2 players who were integral players for their team each season (unlike McFlynn).
They are also both internationals
* Hutchinson went on loan to Chengdu Blades in 2011 (during the off-season). IIRC he missed the first several rounds of the 2011/2012 season.
There were suggestions that this helped reduce the Mariner's wage bill for several months.
** Archie Thompson went to PSV in 2006 primarily to try and have a crack at Europe. It also helped him keep fit and match sharp for the 2006 World Cup. He missed the last 4 rounds of the A-league season.