Luke Littler was booed in a stinging defeat by Michael van Gerwen in front of the Liverpool crowd on Thursday night.
Warrington-born Littler is a well-known Manchester United fan and was even serenaded at Old Trafford for his heroics at the World Darts Championship in January, where he became the youngest world champion ever.
It was victory over Van Gerwen that sealed the 18-year-old's historic achievement at the start of the year.
But on night 12 of the Premier League darts at M&S Bank Arena, Littler agonisingly blew a 4-0 lead to his Dutch rival.