Paul Robinson feels Tottenham's season could be defined by the results of their next few matches.
Spurs travel to Arsenal on Wednesday for the first leg of their Carling Cup semi-final, before facing Chelsea in the Premier League at the weekend.
They also have an FA Cup third round replay against Reading, league clashes against Sunderland, Everton and Manchester United, and the return leg of the Arsenal tie.
"We've got Arsenal, we've got Chelsea, we've got Arsenal again," said the Spurs goalkeeper.
"We have got Sunderland at home who are scrapping for their lives. So it's a big month for us."
Spurs have had problems in defence this season and Robinson accepts that a massive improvement will be needed at Emirates Stadium to keep Arsenal at bay.
"We need to be strong," he said. "It's a tough game against Arsenal.
"It's a re-run of last year's semi-final and we need to shore up at the back. We know that, we have worked hard on it and it's starting to come.
"But it needs to come quickly because we have got a tough month coming up now."
Jermaine Jenas is also desperate to exact revenge for last season's semi-final defeat, when Tottenham went 2-0 up before eventually losing in extra-time.
Jenas said: "I remember last year, I have sore memories of that and we want to change it to the opposite feeling after that outcome.
"Against teams like Arsenal and Manchester United it doesn't matter if you are two or three up, if you don't keep going they will punish you as they always think they are still in the game.
"We have to be positive, the tie is the other way around this time and that might put a different swing on things with being able to bring them back to the Lane for the second game - that may help."