5) Frank Lampard and Frank Lampard

Before Frank Lampard made a name for himself at Chelsea, his father had already cemented the name as an English club football great. Frank Lampard Sr had spent 18 years at West Ham where he amassed over 660 appearances.
Making his debut at the age of 19, he made the left-back position his own. As the Hammers bounced between the first and second division, Lampard was part of the squad that won two FA Cups.
When his son also decided to follow in his father's footsteps, he joined West Ham's famous youth academy where his father was an assistant coach. Lampard's stock soon rose over the next five years and that was when Chelsea came in with a £11m bid.

Frank never looked back. By the time the midfielder left the Stamford Bridge club, he was their top goal scorer with 211 goals, having won the Premier League thrice, the FA Cup four times and the club's first Champions League trophy.
He also made 106 appearances for England, scoring 29 goals for the Three Lions.