Day Two - Coral.co.uk Players Championships
Dennis produced another incredible comeback to battle from 5-0 down and edge out John Part in a decider to reach the coral.co.uk Players Championship quarter-finals.
After overhauling a 3-1 deficit to win 6-3 in the first round, he climbed an even greater mountain to see off the three-time World Champion.
Part made a superb start to power into a 5-0 lead as Priestley had a nightmare with his finishing, but was pegged back leg by leg as the Yorkshireman set up a quarter-final on Saturday night with Robert Thornton.
Part started in confident mood with a 13-darter to open the game and then doubled his lead after Priestley missed six darts at doubles in the second leg, having hit two maximums earlier in the leg.
The same fate fell upon Priestley again in the third leg as he missed six more darts at doubles and the Canadian hit a two-dart 60 finish to lead 3-0.
A 101 checkout in the fourth leg and double 16 in the fifth took Part into a 5-0 lead and the Canadian appeared to coasting to a straight-forward victory.
Priestley managed to win his first leg of the match in the sixth and then produced a superb 156 checkout to reduce the deficit to 5-2.
Part missed a dart at bullseye which would gave given him the match in the eighth, and Priestley hit a pressure 93 finish on the bull to keep the match alive.
Part missed two further darts for the match at double top in the next, and Priestley won that leg and then broke the Canadian's throw to take the match into a deciding leg.
Priestley had advantage of throw in the decider but Part had another shot for the match after hitting two treble 19s on 126, but was off-target with double six and the Yorkshireman stepped up to land double top and complete an unlikely victory.
