The Czech playmaker quips that Spurs are the worst thing about London.
Theo Walcott and Danny Welbeck says it's the traffic. Hector Bellerin and Santi Cazorla say it's the weather.
Both North London rivals played out a thrilling 2-2 draw at White Hart Lane on Saturday in a result which was arguably tougher to swallow for Spurs, who were facing 10 men for much of the second half following Francis Coquelin's red card.
If Alexis Sanchez's equaliser was not tough enough for Tottenham, Rosicky has now added insult to injury with a quip on the Gunners' official YouTube channel.
When asked what the best thing about London was, the Czech playmaker claimed that it was Arsenal, after a host of his team-mates had answered that it was the atmosphere and restaurants and whatnot.
When asked what the worst was, the 35-year-old responded "Tottenham" followed by a cheeky smile. Find the video of Rosicky's remark just below.
Be that as it may, the Lilywhites may well have the last laugh this season. They sit second in the Premier League table, five points behind Leicester City but three ahead of their bitter rivals in third.