Arsenal have been training on a pitch similar to the one they will be playing on when they take on non-league side Sutton United on Monday night.
Sutton is the second of the non-league minnows to play Premier League opposition in the latest round of the FA Cup and are hoping to join Lincoln City in the quarter-finals.
Arsenal have been preparing for the unfamiliar pitch surface by training indoors on a plastic surface this week.
‘The dangers are first of all the pitch, secondly their enthusiasm and thirdly that we are not ready for a big fight and subconsciously think that they are a non-league team and it is no matter,’ said Wenger.
‘That will not happen.
‘Sutton, I have heard, have a wet pitch which they water before the game and is quicker.
‘The weight on the joints is different and you cannot slide to block every time so it makes football a bit different.
‘The ball comes to you suddenly and accelerates and does not slow down like in a normal game.’
Premier League sides rarely get the chance to play on 3G pitches as they are thought to increase the chances of injury.
Danny Welbeck has already said he has pulled out of the squad for fear the pitch may aggravate his injury.
Arsenal players have also been playing without their metal studs as they have been told not to wear them ahead of the change in surface.