12:30Rugby UnionNorthampton Saints v MunsterBBC Radio 5 Sports Extra Duration: 2 hours, 30 minutes Sun 18th Dec 2022, 12:30 on BBC Radio 5 Sports ExtraLive rugby union commentary from BBC Radio Northampton of Northampton Saints v Munster in the European Champions Cup.GenresSportRugby UnionSeriesRugby Union Source: BBC Online