Michael Dawson has insisted Tottenham have not given up hope of snatching fourth place in the Barclays Premier League.
Spurs' bid to secure a second successive season of Champions League football appeared to have been dashed when they lost controversially at Chelsea on Saturday before Manchester City won at Blackburn to open up a seven-point advantage with just four games remaining.
After winning just one of their last 11 matches in all competitions, Tottenham are even struggling to qualify for the Europa League after slipping to sixth in the table.
Failure to beat Blackpool on Saturday could signal the end of their top-four hopes, and even victory would leave them still needing to win at City on Tuesday to stand any chance of a remarkable fightback.
But defender Dawson told Spurs TV Online: "We're still in that hunt for fourth spot and we won't be giving up. It's a must, must-win on Saturday and then we go to Man City to give them a good game and hopefully get the win there.
"We've got to concentrate on Saturday and make sure that we get the three points, which is a must. Nothing else will be good enough for us."