There were four Swedes from the start in the London derby, which was played at the Emirates Stadium.
Magdalena Eriksson and Zecira Musovic got to wear the Chelsea shirt, while Stina Blackstenius and Lina Hurtig took their place in Arsenal's attacking set-up.
Home team Arsenal started strongly but soon Chelsea took over the initiative in the match.
However, the visitors found it difficult to create any clear chances and Manuela Zinsberger in Arsenal's box did not have to toil too much in the first half, which was goalless.
The first goal of the match came in the second half.
After just under an hour, Arsenal were awarded a penalty, which upset Chelsea captain Eriksson, as the situation partly took place outside the penalty area.
But the chance from the penalty spot was a fact and Kim Little outwitted Musovic to make it 1-0 for Arsenal.
Swedish acquaintance behind the goal
The goal reinvigorated Arsenal, who dominated the game, but Chelsea soon took over again in search of an equaliser.
Only in the 76th minute did the visitors' first finish on goal come, from Eriksson.
And the second finish that went inside the frame also went into the goal.
It was Sam Kerr who was well positioned centrally in front of the goal and headed the ball into the net.
The pass was served by Swedish acquaintance Jelena Cankovic, who previously played for FC Rosengård.
The clock then ticked quickly and the tie stood until the final whistle.
The top teams get to share the points, which means that Chelsea remain top of the table with three points more than Arsenal, but one game more played.