With Liverpool pushing forward, Chelsea catch them on the break and Hasselbaink's shot rebounds out of Dudek's hands to Dalla Bona on the line and he scores from a yard out.
From a cross by Hasselbaink, Graeme Le Saux has his first time shot pushed on to the post by Dudek, but the England star couldn't miss with the rebound. 1-0 Chelsea.
The goal, scored brilliantly by Hasselbaink, is controversial. Seconds before the goal Liverpool are denied a blatant corner but Chelsea promptly score from the goal-kick, when the striker charges through to fire a drive beyond Dudek.
Deep into injury time Chelsea carve Liverpool's defence open again and Icelandic international Eidur Gudjohnsen finishes superbly from close range.
A disastrous game for Liverpool as a rampant Chelsea put four goals past Dudek to inflict Liverpool?s heaviest Premiership defeat for some time.