Turkey coach Senol Gunes said on Saturday his side will need a "miracle" to reach the Euro 2020 last 16 ahead of their final group game against Switzerland.
Turkey sit bottom of Group A, without a point or a goal after defeats by Italy in Rome and Wales in Baku.
They face Switzerland on Sunday in the Azeri capital knowing they need to win to keep their slim chances of booking a place in the knockout stage alive.
"We are in a situation where we need a miracle to happen," Gunes said.
"It will be very sad to go home from this tournament without any success.
"After the first game against Italy it felt like it was the end of the world."
Centre-back Caglar Soyuncu said the most disappointing aspect of the opening losses, a second straight European Championship where Turkey have started with two defeats, was the defence.
"I'm sorry for the result. We want to close the chapter with three points," he said.
"We are all sad, tomorrow is a completely new game. We are really sad to have conceded five goals in two games."
Gunes took over in March 2019 and oversaw victories over World Cup holders France and Euro 2016 quarter-finalists Iceland during the qualifying campaign, losing just once.
The 69-year-old said he is likely to make alterations to his starting line-up from Wednesday's loss to Wales in Azerbaijan.
Left-back Umut Meras will miss the match with Switzerland and could be replaced by Sassuolo's Mert Muldur.
The likes of AC Milan's Hakan Calhanoglu and Fenerbahce's Ozan Tufan could lose their spots in the team.
"There can be changes. We are below our standard. We still have expectations," he said.
"Umut is not playing tomorrow. We might have a change in midfield."
- 'Big switch' -
Switzerland coach Vladimir Petkovic apologised to the country in an open letter published in Saturday's edition of newspaper Schweize am Wochenende after Wednesday's 3-0 hammering to Italy.
Petkovic's men also need three points to have a chance of claiming a place in the next round.
"The game has a great importance. It's a knock-out game basically," Petkovic said.
"We go home or continue playing, there is no other option."
Goalkeeper Yann Sommer returned to the set-up on Friday, having returned to Germany after the loss to the Azzurri for the birth of his second child.
"It was a big switch between me as a footballer and me as a family man," the 32-year-old said.
"After the game I was very disappointed with the result and our performance. But then I was very euphoric when I arrived and hugged my baby.
"Ever since I came back, we talked about things, what we have to improve, because we're not happy with ourselves."