Brian O'Driscoll is desperate to remain fit for Ireland and the Lions

Brian O'Driscoll is optimistic he can stay remain fit for a potentially huge six months after starring in Ireland's 30-22 victory over Wales on Saturday.

On Ireland's triumph in Cardiff, O'Driscoll said: "It was a very physical game, real Six Nations stuff which you expect when you come to Cardiff.

Stop the rot

"We'd lost the last three to Wales and we just felt as though we needed to stop the rot. "It's a great day, a good start for us in this Six Nations. It puts us in a good place with England to come next week. "This championship's about momentum. If you lose the first you're in trouble, if you win you're in a good spot. We have to build on this. "The understanding from winning the Grand Slam in 2009 is that even when you're not great, you have to be good. Consistency will be the key for this Six Nations."