Even casual watchers of the Premier League in the 2000s will be well familiar with Eidur Gudjohnsen, who bagged 78 goals in all competitions for Chelsea and formed a potent partnership with Jimmy Floyd Hasselbaink during his time at Stamford Bridge.
Now his son Andri has been selected as part of Real Madrid's provisional 40-man Champions League squad
After leaving the Blues, Eidur moved to Barcelona in 2006, taking in the formative years of Lionel Messi's career and playing in his part in Pep Guardiola's treble-winning side.
The 88-cap Iceland international announced his retirement from football in 2017, with his three boys all picking up the baton.