Arsenal looked good to run away with a 1-0 win at Stamford Bridge, but Pedro Neto cancelled out the goal to ensure that Chelsea hang on to their third spot on the Premier League table.
Neto with a low left shot scored his first goal for Chelsea after joining for £54 million from Wolverhampton Wanderers in the summer.
“I am really happy to help the team,” said Neto.
“We wanted to win, but we knew we had hard work in front of us because Arsenal are a good team. We came to win, so we’re not as happy as we wanted to be, but we didn’t want to lose and it’s a good point against a good team.”
Gabriel Martinelli had opened the scoring for the Gunners in the second half, in the match they squandered chances.
“I am very disappointed but very proud as well with what I have seen from the team again,” Arsenal coach Mikel Arteta told BBC Sport.
“We did the most difficult one to score the first goal but very disappointed with the way we conceded.
“But then the team reacted in a way that was fabulous with the desire to win, show initiative, take risks and be so dominant but we didn’t manage to score the [winning] goal.
“They destroy every team that comes here in every way, but I thought we were superb. We were very unlucky. We have dominated one of the best teams in Europe but we don’t get the results. That is what is missing.”