Unfortuantely the Blues Under 18s went down 17-5.
The Blues Under 16s derby has been postponed for the second time.
The last outing for the South was an outstanding 21-15 victory over the Scarlets at Stradey Park - their third win in six games so far this term. Blues North went down 30-5 to the table-topping Ospreys.
However, they have already exceeded expectations this season with victories over the Scarlets and against Blues South 18-7 in October.