Matthew Upson has admitted that the England team's matches have not reflected the work they had done in training, and that the mood in the camp is a positive one.
The West Ham defender will start alongside John Terry in the centre of defence in place of the injured Ledley King and the suspended Jamie Carragher in their must-win match against Slovenia on Wednesday.
It has been several days of turmoil around the England setup, with rumours of unrest and player power unsettling matters further following their dire goalless draw with Algeria on Friday which has put qualification for the last 16 from Group C in doubt.
Upson confessed the players' disappointment following the result against the Desert Foxes in Cape Town, but was quick to point out that the whole team are together and focused on the final group game in Port Elizabeth.
Mood is good
"It (the mood) has been pretty good, I think everyone was a bit disappointed the day after the game," Upson told FATV.
"But with football you have to put that behind and move on to the next game, which comes around very quickly.
"You can't dwell and I think as a group you have to move on and I feel that we've done that and it is out of the system. Now it's all down to the game on Wednesday."
The 31-year-old reacted to England supporters' boos following the game with a degree of understanding, but also urged them to get behind the team for the crucial game.
"I couldn't blame them for being disappointed with it because it's an obvious reaction to have," he added.
"We've been quite disappointed but I stress that the team still need your support very much. It doesn't go unnoticed by any means."
With regards to training sessions, Upson also stated that they had been of the highest quality, with what had been done in practice not being reflected by their performances on the pitch.
He was also adamant that the players must perform as individuals, stating that if they can find their form, the team could still go a long way in the tournament.
"Our training for the whole five weeks has been outstanding, the sessions have been first class, it's been sharp, it's been committed, it's been highly professional," he continued.
"The matches really haven't been a reflection of how well we have trained as a group, which again is frustrating because we can see the quality and what we can do. So the training hasn't really changed at all and has been excellent from day one.
"Everyone's been committed from the start; it's just a case of our approach to the games and our mentality in the matches possibly.
"I think we're all good players, everyone's got great ability and they wouldn't be here if they couldn't do the job.
"We need to get the best out of ourselves and that's also an individual thing as well as a team thing.
"If individually we can press the button where we can go out and play our best then the team will obviously be successful, so it's down to us as individuals to make sure we're in the right frame of mind and we go out, let it flow, let it happen and hold nothing back."
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