Chelsea defender Branislav Ivanovic believes his sides short trip to Arsenal this weekend is their biggest test of the season thus far.
The Premier League leaders have recorded four wins and a draw from five matches to sit a point clear of Manchester United but the Serbian is well aware that the in-form Gunners, who sit fifth without a loss, will be very difficult to beat.
"We have the next game as a very great challenge for us in the Premier League - Arsenal away," he said. "This is the first actual big game for us this season.
"Our performances and quality - we know how it is. But we have to show everyone, and we have to show it every game.
"This is the biggest challenge. I think Arsenal will be a great challenge for us, and we have to really be ready for that."
