Arsenal goalkeeper Petr Cech has said rivals Tottenham must win silverware before they can claim to have become the dominant club in North London.
Cech, whose team take on Spurs in a derby on Saturday, told Sky Sports Spurs needed a trophy in order to show "progression."
Tottenham finished above Arsenal last season, the first time in 22 years that had happened, having been pipped to second place by them on the final day of the campaign before that.
But Cech, asked whether the balance between the rivals had changed, said: "No, I don't think so.
"There is always one odd year where things can change, but the most important thing for us is competing against the other teams for the Premier League title and for the glory.
"We are not competing against Tottenham Hotspur. Our target is to win the title and be successful during the season, not necessarily looking at what Tottenham are doing.
"They've been there in the last few years so now I think they have to make sure they win something to show the progression. Success is ultimately winning trophies."
And the former Chelsea goalkeeper praised Tottenham boss Mauricio Pochettino, saying he had been "the big factor" in their improvement.
"You can see from his work at Southampton that he is very capable as a manager and coach," he added.