This list is from the Super League era, and doesn't include overseas players who originally came from Down Under such as Blake Green, Pat Richards and Thomas Leuluai...
5. Dan Sarginson
Like Burgess and Mossop, left and returned to Wigan after one frustrating season in the NRL with Gold Coast Titans in 2017. (Photo: Mark Cosgrove/News Images)
6. Joe Burgess
One season in the NRL.. with two clubs! Struggled for game-time at Sydney Roosters in 2016, fared better after a switch to Souths. (Photo: Martin Rickett/PA Wire)
7. Lee Mossop
Serious shoulder injuries bookended his one season at Parramatta in 2014, limiting him to just three matches.
8. Sam Tomkins
England ace spent two years at New Zealand Warriors from 2014. Solid without being spectacular in a struggling side. (Photo by Nathan Stirk/Getty Images)