Gareth Bale has attributed Tottenham's win over Arsenal to Spurs keeping their best players in the summer - something their north London rivals were unable to do.
The Gunners lost captain Cesc Fabregas to Barcelona during the transfer window, while Samir Nasri and Gael Clichy both defected to Manchester City.
Spurs, however, rebuffed a number of bids from Chelsea for Luka Modric, even through the Croatian outlined his wish to move to Stamford Bridge.
And, following Spurs' 2-1 victory over Arsenal on Sunday, Bale believes Daniel Levy has been vindicated for not cashing in on Modric, despite the substantial offers for his services.
"Arsenal have lost a few players, which makes them more beatable I think as that has damaged the way they play," Bale told the London Evening Standard.
"We exposed that. I think keeping your best players is a massive thing. They are used to how you play and what you do. It is vitally important to do that and build your team around them.
"It is important that we have kept him [Modric], and Arsenal were unlucky not to keep theirs.
"But they are still a great team. They haven't had the best of starts but I am sure they will improve.
"They have a lot of young players who are going to grow up in the next season or two and learn a lot. I am sure they will be fine."
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