Wales international Bale scored his 15th Barclays Premier League goal with a superb last-minute winner to beat West Ham 3-2 on Monday night, which lifted Spurs up to third in the table.
The 23-year-old - once scouted by Arsenal when a youngster at Southampton - is being heralded as one of the best in Europe, up alongside Cristiano Ronaldo and Lionel Messi.
Wenger, though, maintains he has made no specifics tactics to try to shackle Bale, and instead expects his players to deliver their own A-game in what is expected to be a fiercely-contested north London derby as the duo battle for Champions League qualification.
"We don't plan for anybody. It is always the same - focus on our strengths and forget about your opponent," said Wenger, who will be without regular right-back Bacary Sagna once again because of an ankle problem.
"There is nobody special that you least like to face. All players have different qualities.
"What is important when you are a manager is that you are focused, that hasn't changed over the last 15 years, you always make sure your team is at its best, prepares well and focuses on playing the football that we love.
"What is important before a game like that is just to focus on our game and forget all the rest."