Fernando Santos is confident Portugal can handle the pressure of competing in the World Cup qualifying play-offs.

The Selecao face Turkey in the 'Path C' semi-finals in Porto on Thursday, with the winner of that tie set to take on Italy or North Macedonia next Tuesday.

Portugal have been made to do things the hard way after losing 2-1 to Serbia in November, meaning they missed out on automatic qualification at their opponents' expense.

However, Santos insists the winner-takes-all nature of this week's play-offs can help get the best out of his players, having prevailed in two previous finals during his stewardship.

"What has happened has always been a positive sign," he said at Wednesday's pre-match news conference. "In the two previous finals we've played, we won both.

"In these decisive games we have given a positive response, except in the last game [against Serbia]. The players are experienced and will not be put off.

"We fought hard in those previous finals to make 11 million people happy. Tomorrow, in this next 'final', we want to do so again."

Portugal won Euro 2016 and the 2018-19 UEFA Nations League, beating France and the Netherlands in those respective finals.

The European heavyweights have a big task on their hands if they are to reach Qatar 2022, though, with Turkey and then potentially Italy awaiting over the next six days.

A failure to qualify for a major tournament for the first time since 1998 could cost Santos his job, but the 67-year-old is not thinking about his future ahead of crucial games.

"That's not the question," said Santos, who has been in charge of the national team since 2014.

"I understand why I'm asked, but I'm totally focused on what we have to play for tomorrow and we know what we have to do. 

"The team is highly focused and motivated. We know that we are here because of our responsibility. We have to win to be in the World Cup.

"All our focus is on this game we have tomorrow against Turkey."