Rob Cross and Dave Chisnall among big names to fall at Alexandra Palace

Rob Cross reacts during his PDC World Championship defeat to Scott Williams (John Walton/PA)

Former champion Rob Cross and Dave Chisnall crashed out of the PDC World Championship as more seeds were scattered at Alexandra Palace.

Fifth seed Cross, the 2018 champion, lost 3-1 to Scott Williams while Ricky Evans survived a match dart against him to upset sixth seed Chisnall in an epic second-round clash decided by a sudden death leg.