By Nick Teale
 
Arsène Wenger says it is hard to know how much Tottenham Hotspur's FA Cup Semi-Final defeat against Portsmouth will affect Harry Redknapp's side.
 
Sunday's match at Wembley finished 0-0 after 90 minutes but Frederic Piquionne's 99th-minute strike and Kevin-Prince Boateng's penalty eliminated Spurs from the competition.
 
There has been speculation that the defeat will come as a mental blow to Spurs ahead of Wednesday's North London derby but Wenger is unsure about that.
 
"It's difficult to know because they had a tough physical game," he said. "But it's always difficult to see how much impact it would have on the next one.

"They have done well and the race will be very tight. It looks like it will be between Man City and Tottenham now. But they have a difficult schedule.
 
Speaking at his pre-match press conference on Tuesday afternoon, the manager also reiterated his belief that Arsenal must win their final five games in order to have a chance of winning the Premier League.
 
"Well we know to win the championship anything other than a victory is not good enough," he said.  "So we go [to Tottenham] with that desire, with that firm intention to win the game. We will not go for a draw, we want to win the game.

"Chelsea is in a strong mathematical position but that doesn't mean that it will happen as predicted because this League is special this year and that unpredictability is what we have learned about the whole season."

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 13 Apr 2010