The word ‘invincibles’ has been most associated with Arsenal.

The men’s team went unbeaten in 2003-04 while the women’s team went on an incredible six-year run without defeat in the league between 2003 and 2009.

But this season Chelsea’s women’s team could give new meaning to the term. Since taking over from Emma Hayes in the summer, Sonia Bompastor is unbeaten in all competitions.

It is 10 wins and one draw in the Women’s Super League while Chelsea have also won their one FA Cup game, one League Cup game and every match in the Champions League.

Bompastor’s side have 31 points from their 11 WSL games and are on course to break their own record tally of 58 in a 22-match season.

Chelsea have gone through a WSL campaign without defeat before, in 2017-18, but to achieve that feat this campaign, with the standard of the division undoubtedly higher and more competitive, would be remarkable.

Greatest accomplishment by an English side beckons

To go unbeaten in every competition would match Arsenal’s achievement of 2007 but, given the stakes are much higher now than they were in the pre-professional era, it would be the greatest accomplishment by an English side.

Fitting, then, that Arsenal have the chance to prevent that from happening when they take on Chelsea at Stamford Bridge on Sunday.

That game looks like Chelsea’s toughest of the season so far, with Renee Slegers unbeaten since taking over from Jonas Eidevall in October.

But Chelsea looked refreshed and revitalised after the Christmas break in their dominant 5-0 victory over West Ham United last weekend.

The stats also show that Chelsea are on course for a record-breaking season.

They have scored the most goals in the WSL with 36, nine more than their closest rivals Arsenal. It is unsurprising to see they have taken the most shots and have the highest xG (expected goals) of the 12 teams in the division as well as the highest conversion rate.

Interestingly, Chelsea also have the highest number of high turnovers – instances in which they have regained possession close to the opposition’s goal. In fact, 10 of their 36 goals have come from high turnovers, which shows Bompastor’s side are executing their pressing game superbly.

It may be surprising to see that Chelsea rank third for passing, passing accuracy and possession. But that also indicates that they use their possession better than other teams and are more ruthless in front of goal when they do have the ball. For example, when Chelsea beat Manchester City 2-0 in November, they had just 36 per cent possession but had seven more shots on goal and four more on target.

Perhaps the only area where Chelsea could make some minor improvements is defensively. They rank third for goals conceded and shots faced but Arsenal and Manchester United, who are ranked above them, have only conceded one goal more. They are also ranked second for expected goals against, meaning they are giving away few high-quality chances to their opposition.

Chelsea’s defence will also be significantly strengthened by the addition of United States centre-back Naomi Girma.

There is still a long way to go and Chelsea will no doubt face tougher tests throughout the season, starting on Sunday against the in-form Arsenal. But if their first half of the season is anything to go by, there is every reason to believe they can become the new ‘invincibles’.