 Complete the following phrase:  Van Gerwen began playing darts at the age of 13. He won the 2006 World Masters and threw a televised nine-dart finish at the 2007 Masters of Darts, becoming the youngest player to do both, aged 17. However, after this initial burst onto the darting scene, van Gerwen struggled for consistent form until his breakthrough year in 2012. Improving from world number 38 at the start of 2012 to number four at the beginning of 2013, he won his first major PDC title at the World Grand Prix and reached the final at the 2013 World Championship. In 