Tottenham Hotspur manager Jose Mourinho believes they could be "in big trouble" in the coming months due to their lack of attacking options.
Spurs moved to within four points of fourth-place Chelsea after beating Manchester City 2-0 on Sunday.
Goals from debutant Steven Bergwijn and Heung-Min Son did the damage for Mourinho's side in the second half.
However, despite the encouraging victory, Mourinho was sceptical about his side's chances of finishing in the Champions League places due to their lack of squad depth in attack.
With Harry Kane absent until mid-April, Tottenham are relying on Son and Lucas Moura as make-shift strikers after failing to sign a new striker in the January transfer window.
"I don't like to speak about this but I have to say, if I have on the bench fresh attacking players I can do things that in this moment I can not do," he told Sky Sports after the match when asked about his tactical instructions to Son after his goal put Tottenham 2-0 ahead.
"My attacking players have to go to their limits. It was the limit for Son, it was the limit for Lucas. I could bring on Lamela and it's difficult for the boys.
"What I was saying at that time was the one playing as a nine, when the block was lower they had to get the position of Rodri, forget the centre-backs with the ball.
"For the one on left with 15 minutes to go and winning 2-0, just extra effort but at this moment it is not zonal, it to chase Kyle Walker and help defend."
He added: "It's going to be difficult, honestly. We are in three compeitions, we play again in three days. If I don't have Dele Alli, I don't have Steven (Bergwijn) because he can't play in that competition, we are in trouble.
"When we start playing Champions League and we play Aston Villa, two days later we have Leipzig, two days later we go to Chelsea, two days later hopefully we have FA Cup, we will be in trouble.
"We have players for four positions, it is not a problem when Ben Davies is back, Tanganga, Vertonghen, Alderweireld, we have positions where it is not a big deal but up front is difficult so it is going to be difficult.
"It was a good weekend we got two points to Arsenal to Chelsea to Leicester to Wolves, we didn't lose points to Sheffield (United), it is good for us.
"Obviously, against the champions, still the champions. A fantastic team, even if they are going to lose the title."
