A much-improved performance for Sefton Ladies was overshadowed by an injury to hooker Emma Fitzsimmons.
Fitzsimmons was taking part in a scrum when it collapsed, and it was suspected she had suffered a head or neck injury.
Coaches and first-aiders ran to her side to keep her head still and covered her with coats to keep her warm.
An ambulance was called, and she is hopefully recovering in hospital and has not suffered too serious an injury.
The game was very open up until that point with Sefton scoring first, getting just their third try of this new season.
At around the first-quarter mark, winger Kerry Meek received the ball after a good passing move to dot down for the first score.
Fly-half Luci McKeown missed the conversion to keep the scoreline at 5-0.
This would prove to be their only points of the game as Waterloo took control of the game and put Sefton under immense pressure.
Waterloo inside centre Emma Hutchinson had a stand-out performance, breaking the Sefton line to create a big chance for Waterloo.
This was finished by the captain Rachael Thomas as winger Hannah Roberts got just shy of the try line and threw the ball back to the hooker for her side’s equaliser.
Thomas took the conversion and also missed keeping the score-line at 5-5.
Waterloo continued their dominance from here, pinning Sefton into their own 22 and working them with scrums.
This pressure eventually paid off as a penalty was given for a high tackle close to the line, Waterloo took a quick tap and played the ball wide.
Number Eight Jamie-Leigh Bellerby took the ball and ran at the Sefton defence, she drove through the tackles to score Waterloo’s second.
The try was also unconverted leaving it 10-5 to Sefton, who looked to be losing their grip on the game.
Sefton tried to rally after half-time and created a few good chances but just could not find that finishing touch to score.
Towards the last quarter of the game it looked as if Sefton had a chance to equalise as Waterloo lost the ball backwards, a crunching hit kept the momentum going.
This pressure came to nothing as Thomas picked up the ball and off-loaded it to Hutchinson who ran from the half-way line to score the decisive try.
Another missed conversion meant the final score ended 15-5 to Waterloo.
Sefton did create a few more chances following the restart after Fitzsimmons’ injury but failed to score.
It was a much-improved performance compared to their opening two defeats of 102-0 and 64-0.
Sefton will hope to improve in their next game against Harrogate ladies who come off the back of a 38-10 loss to West Park Leeds.