As 16-year-old Luke Littler joins darts' Premier League, perhaps the story of tennis star Emma Raducanu's fall from the top should act as a warning of the dangers of too much, too soon. Both Emma and Luke showed extraordinary skill as small children, winning titles before they were even teenagers - but the world of professional sport can be unforgiving with burn out a real danger.
The same day that Luke 'the Nuke' was celebrating his extraordinary run of success in the PDC World Darts championship at Alexandra Palace - the youngest player ever to reach the finals - another young sporting star was processing a crushing defeat on the other side of the world, in Auckland.