19:40Rugby UnionCardiff Blues v CalvisanoBBC Radio 5 Sports Extra Duration: 2 hours, 5 minutes Fri 22nd Jan 2016, 19:40 on BBC Radio 5 Sports Extra5 live sports extra joins BBC Radio Wales for live commentary from the European Rugby Challenge Cup as Cardiff Blues face Calvisano.GenresSportRugby UnionSeriesRugby Union Source: BBC Online