Complex sentence: He became the youngest player ever to win a major PDC title at the World Matchplay in 2007 at the age of 24, a record which was broken when Michael van Gerwen won the 2012 World Grand Prix at the age of 23.
Split into simpler sentences: He became the youngest player to win a major PDC title at the World Matchplay in 2007, at the age of 24. This record was broken when Michael van Gerwen won the 2012 World Grand Prix at the age of 23.