12:15Rugby League: Challenge Cup2018Semi-Final: St Helens v CatalansBBC One Duration: 2 hours, 25 minutes Sun 5th Aug 2018, 12:15 on BBC One Scotland HDMark Chapman presents live coverage of the 2018 Challenge Cup semi-final between St Helens and Catalans Dragons at Bolton's Macron Stadium.ContributorsPresenter:Mark ChapmanGenresSportRugby LeagueBrandRugby League: Challenge CupSeriesRugby League: Challenge Cup: 2018 Source: BBC Online