Tottenham boss Harry Redknapp admitted his side's hopes of securing Champions League football had been left hanging by a thread following Saturday's home 1-1 draw against Blackpool.
After a fourth league match without a win, Spurs trail Manchester City by six points with three games to go.
And Redknapp, who faces a spell without winger Gareth Bale, said: "It's going to be very difficult, obviously.
"We haven't been able to win games in the last month or so."
Redknapp added that, despite the club's success in reaching the quarter-finals of this year's Champions League, expectations need to be realistic.
"It takes some doing to get in the top four," he stated. "We have only done it once before.
"It's not as though we do it every year and people have to understand that."
Redknapp said he was uncertain about the extent of Bale's ankle injury following the 1-1 draw with Blackpool.
The winger was taken off on a stretcher following a rash challenge from Charlie Adam in the 64th minute.
Bale will have a scan on Monday to determine the extent of the damage.
"We are not sure whether he has done his ligament or something. They are checking up on him but it is quite swollen," said Redknapp.
"It looked a bad challenge.
"It might not be so bad. He might have done his ligament, it may just be a twist. I don't know, we'll have to wait and see."
The injury looks certain to keep the Professional Footballers' Association player of the year out of Tuesday's crunch match against Manchester City at Eastlands.
Adam, who was shortlisted along with Bale for the PFA award, went into the Tottenham dressing room to apologise to the Wales international after the game and stressed he never meant to hurt the player.
The Scot said: "I just saw the ball, I just tried to get it. It was never intentional. I never tried to hurt him because he's a wonderful player and at the end of the day I'd rather see these players on the pitch."
Tottenham's hopes of qualifying for the Champions League for the second successive season look increasingly bleak despite collecting a late point against Blackpool at White Hart Lane.
The north Londoners trail fourth-placed City by six points with 56 with three games remaining in the season following their home draw against Blackpool.
Jermain Defoe's 89th-minute strike cancelled out a 76th-minute penalty from Charlie Adam, who had a penalty saved 60 seconds earlier by goalkeeper Heurelho Gomes.
But the Brazilian was responsible for conceding the spot-kick which allowed Adam to put the visitors in front - but Redknapp backed his goalkeeper to bounce back after his error.
"Technically he is a fantastic goalkeeper - he can make unbelievable saves," said the former Southampton and Portsmouth manager.
"I worked with [former England keeper] David James and people would would pick up on his odd mistake but over the season he would make saves no-one else could even dream of making.
"This guy [Gomes] is like that, he makes fantastic saves, he has made a couple of mistakes in the last month but over the season he has done ever so well for us.
"Sometimes keepers have a spell when they make a mistake or two, but today I thought he came out of it great, apart from the penalty."