Jermaine Jenas believes Tottenham Hotspur must improve defensively if they are to challenge for honours this season.
Spurs boss Harry Redknapp recently stated that his side could make a push for the Premier League title during the current campaign.
And Jenas believes such a feat could only be doable if they address their frailties at the back, with Tottenham conceding in each of their last 17 games.
"It's something we need to rectify, and soon," he said ahead of Wednesday's UEFA Champions League clash with Werder Bremen.
"It's great winning games 4-3 and so on but there's going to come a point where you need to win 1-0.
"All the top teams do it and it's an area we need to improve on if we are going to do anything special this year."
A victory for Spurs against Werder would secure their passage to the last 16 of the Champions League, and Jenas added: "A victory is a victory.
"But one with a clean sheet, we'd take a bit more pride in."
What will be the outcome in the match Tottenham vs Werder Bremen?