Sam Kerr's Chelsea have failed in their quest to go top of Group D in the Women's Champions League, playing out a goalless draw with leaders Haecken at Stamford Bridge.
The Blues would have climbed above their Swedish opponents with a win on Thursday night (Friday AEDT) and were on the front foot for most of the contest.
Chelsea (five points) failed to solve the visitors' stubborn defence and remain in second, two points behind after three matches with the two sides resuming the battle for top spot next week in Gothenburg.
Matildas captain, and skipper for the night in London, Kerr played a full game, as did compatriot Aivi Luik for the away team.
Kerr had an early effort go narrowly wide of the post and a second-half header ruled out for offside.
Erin Cuthbert also went close to scoring when she clipped the underside of the crossbar in the first half, while Haecken barely tested Zecira Musovic in the Chelsea goal.
England star Lauren James looked bright as a second-half substitute, but the encounter was hardly the uplifting response the Blues would have wanted to Sunday's 4-1 Women's Super League defeat at London rivals Arsenal.
"I think we struggled with the basics," Chelsea manager Emma Hayes told UEFA.com.
"I said to the team before the game, 'Execute the passes.' First half, I thought we started the game brightly. [We] made 27 penalty-box entries but only two shots on target.
"I think we are overdoing things. It’s a technical issue, not a tactical one."
Also in the group, Paris FC recorded their first win by beating Real Madrid 2-1 in the French capital.
The home side were two-up after just six minutes but the Spanish giants pulled one back in the 53rd, Caroline Moller's goal set up by another Matildas star in Hayley Raso.
Midfielder Sarah Hunter did not feature for the victorious hosts, but fellow Australian Clare Hunt played 66 minutes in defence to help Paris Saint-Germain win 2-1 at home against Roma.
Elsewhere in Group C, Bayern drew 1-1 with Ajax Amsterdam in Munich to keep the German club top.