These are not the worst players to feature for the club, some of them had glittering careers elsewhere and one even features on both lists.
But - for reasons including injuries, homesickness, bad luck or in some cases because they weren’t very good - they didn’t make the impact they or the club would have wanted in blue and amber.
For Rhinos’best 21 Super League signings, click here.
7. Nathan McAvoy (2006)
Signed from Salford, the former Bradford Bulls centre/winger made a single substitute appearance for Leeds before being released to join Wigan Warriors just three months into his only season at Headingley. Photo: YPN
8. Mark O'Neill (2006)
An NRL Grand Final winner with Wests Tigers in his last game before joining Leeds, the Aussie forward's debut, in a Boxing Day game, was ended by a shoulder injury and he later suffered leg muscle damage, restricting him to one season and just 11 games. Photo: Steve Riding
9. Greg Eastwood (2010)
Eastwood, a World Cup winner with New Zealand, signed for Leeds from Brisbane Broncos ahead of the 2009 season, but remained in Australia, with Canterbury Bulldogs, after being denied a visa. He finally arrived in 2010 and made 22 appearances, but didn’t settle and returned to Bulldogs after one season. Photo: Tony Johnson
10. Ben Cross
The prop was signed from Newcastle Knights on a two-year deal, but played only 10 times before being released and joining Wigan. Photo: Steve Riding
11. Joe Vickery (2013)
The former Gold Coast Titans back signed a one-year deal after scoring a couple of tries as a trialist in a Boxing Day game. He made his debut in the World Club Challenge and scored one try in 10 games before being released. Photo: Steve Riding
12. Beau Falloon (2016)
Only the name was memorable from his time at Leeds. Signed from Gold Coast Titans, the hooker played 10 times in one season with Rhinos. Photo: Bruce Rollinson