Goalkeeper Wayne Hennessey insists the Wales squad are ready to win back the faith of the supporters.
Manager John Toshack launched a stinging attack on his players after defeat to Cyprus in their Euro 2008 qualifier, which was swiftly followed by a miserable performance as they scraped past San Marino 2-1.
Many of the travelling Wales fans made their feelings known that night, and Hennessey accepts that the players need to put things right when they tackle the Republic of Ireland in Cardiff on Saturday.
The young Wolves goalkeeper, who missed the last two matches with injury, is eager to play his part as Wales aim to make amends.
Hennessey said: "I was devastated to be ruled out injured from the last two Wales games, and after watching the matches against Cyprus and San Marino on TV I was even more disappointed for the lads, the way the performances went.
"Everyone accepts that the performances were not that good, and some of what the boss said afterwards was understandable.
"But the lads have taken that on board and we are all determined to put things right in the next couple of games.
"The training has been really sharp this time around, everyone has been really on form and firing. Some of the lads have questioned themselves and had a chat about things, but they all want to turn in a better display this time around."
Hennessey knows they will have their work cut out against a Republic of Ireland side smarting from their own failure to qualify, which cost Steve Staunton his job.
He added: "We will all want to impress now.
"And we want to get the fans back on our side, some of the lads said there was a bit of stick flying around in San Marino, so we all owe them a performance now.
"If you are not playing well the fans will turn on you, so on Saturday we have the chance to put things right.
"It will be a tough game but hopefully we can get something out of the match."