Ospreys edge derby battle to hit Magners summit

Cardiff Blues 12 Ospreys 16

The visitors, although struggling at the line-out, carried the greater firepower and did just about enough to complete a league double over their big rivals despite trailing for much of the game.

Ospreys coach Sean Holley admitted it was pleasing to see his side leapfrog Munster, who play Ulster on Saturday, at the summit.