In any big encounter you will often hear managers say it is the "fine margins" that decide a game. In this case, it was Sonia Bompastor's decisions.
Bompastor's risks pay off as Chelsea go top of WSL

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Wales beaten in Norway as threat of Nations League relegation grows
Wales suffered a 3-1 defeat to Norway in Oslo despite a spirited performance, as the threat of relegation to the second tier of the Nations League now looms over Craig Bellamy's side.
Last-minute pickups for Week 10: Estime, Tyson among worthy adds
If injuries, bye weeks or tough matchups have you seeking lineup help, Matt Bowen lists potential options.
Buzz: Does Emmett Johnson have RB1 upside while Kenneth Walker III is out?
Kansas City rookie Emmett Johnson is expected to be thrust into a starting role for Week 10 with Kenneth Walker III ruled out.
Ole Miss-Oklahoma bumped to Sunday despite Sooners AD's 'strong objection'
Oklahoma AD Roger Denny was critical of the SEC's decision to move the Sooners' home game against Ole Miss to Sunday following Friday's nationwide ground stop.
Avs stars MacKinnon, Makar out multiple weeks with lower-body injuries
Colorado's Nathan MacKinnon is out at least a month, while teammate Cale Makar will be out approximately two weeks, both with lower-body injuries.
NFL reassigns backup referees to work Sunday games within driving distance
The NFL, trying to avoid further travel issues from Friday's FAA ground stop, has reassigned officials to Week 10 games within driving distance of their homes.