Alan Shearer has vowed to give his all as Newcastle United battle to stay in the Premier League.
Shearer has been appointed as the Magpies' manager for the final eight games of the season while Joe Kinnear continues to recuperate from heart surgery.
He took his first training session on Thursday morning ahead of Saturday's home game against Chelsea.
But the club's record goalscorer was adamant that he would not remain in charge beyond the end of the current season regardless of success or failure.
Addressing the supporters at his unveiling this afternoon, Shearer, the club's all-time top scorer, said: "I love this club and realise they are in a very bad position and have been give the opportunity to do something about it.
"I feel the pain that the fans are going through...but I wouldn't be sat here if I didn't think there was enough quality in that squad. The quality is there, they just need the confidence.
"The fans know they will get 100%, 24-hours-a-day for the next eight games. I hope that will be good enough because it would sadden me and thousands of supporters if we were in the championship. They don't deserve that, they deserve better."
Shearer said he agreed to take on the short-term role on Sunday, having been given an eight-week sabbatical from his Match of the Day pundit role by the BBC, and completed contract details on Wednesday night.
"I spoke to the players and staff this morning and the training was superb," he said. "They've set a standard we want to keep to and I said after training that if they kept that standard up then we'll be OK.
"I've watched Newcastle in the last few months and it didn't seem as if they were enjoying their football. But they did this morning and we need to transfer that into Saturday's game."
Shearer has no managerial experience and said that was why he brought in former Crystal Palace, Charlton Athletic, Coventry City and Queens Park Rangers manager Iain Dowie as his number two.
"Iain's an experienced manager and he will tell me if he thinks I'm getting it wrong," he said. "I felt it was important to bring him in, to give it a fresh look."