The Dragons' composure began to desert them, with Pelo conceding a needless penalty on halfway - and a couple of tackles later, Pryce went through two tacklers to put Saints ahead.
BBC: St Helens 53-10 Catalans Dragons
2.
The French side went behind to an early Chris Hicks penalty but led 22-2 at half-time thanks to tries from Murphy (2), Thomas Bosc and Dimitri Pelo.
BBC: Catalans Dragons 46-8 Warrington
3.
McGuire slid through the defence to score and Pelo went over twice in the space of seven minutes to put his side within four points of Quins at 28-24.