Tommy Black produced another priceless performance as two second-half goals from the in-form midfielder rescued Crystal Palace from an FA Cup upset with a 2-1 win over Blackpool at Bloomfield Road.
Blackpool had reached half-time with a narrow advantage after Tony Popovic's early own goal but the First Division outfit displayed their class after the interval with two goals in eight minutes from Black, who took his tally to nine in as many games.
The Seasiders had reason to be confident with one of the better home records in Division Two and they easily matched Trevor Francis' players during a slow opening spell.
The visitors had controlled much of the early possession but in the seventh minute striker Richard Walker made space for himself and produced a brilliant 25-yard shot which was heading for the corner of the net before Palace goalkeeper Alex Kolinko dived to tip the ball past the post.
Four minutes later, after Black had wasted a good opportunity from six yards, an upset began to look possible as Blackpool were gifted a soft opening goal.
John Hills tried to connect with a near-post corner and forced defender Popovic to flick the ball into his own net under pressure.
Former Manchester United trainee Ben Thornley threatened to double the hosts' advantage with a long-range effort which the busy Kolinko did well to hold, but a Palace counter-attack almost yielded an immediate equaliser as Danny Butterfield fired narrowly wide at the other end.
Francis' side piled forward during the latter stages of the half but rarely threatened to cut through the Blackpool defence, although John Murphy received the game's first caution for breaking up a Palace attack with a late challenge on Popovic.
Shaun Derry was then booked on the stroke of half-time after bringing down Danny Coid, and Francis showed his concern by replacing Danny Granville with striker Ade Akinbiyi at the start of the second period.
The switch disrupted the home team, who watched the former Leicester player shoot just past the post in the 52nd minute after finding space outside the box, and four minutes later Palace were deservedly level.
Akinbiyi's ball down the right wing found Butterfield, whose deep cross into the box was headed past Phillip Barnes by the unmarked Black at the back post.
Blackpool boss Steve McMahon made two quick changes, with Lee Collins replacing Thornley and John O'Kane taking the field in place of the injured Chris Clarke, but the hosts were in disarray as Black struck again to complete an emphatic turnaround with 64 minutes gone.
O'Kane, on the field for a matter of minutes, brought down Black inside the box and though the midfielder's penalty was brilliantly saved by Barnes, the Palace man followed up to claim a ninth goal of the season and a place in the fourth round of the Cup.
Richie Wellens almost snatched an equaliser with the final whistle approaching but the Blackpool crowd watched in agony as his volley flew the wrong side of the post.