BRIAN O’DRISCOLL may have suggested last week the 2013 RBS Six Nations is likely to be his last, but the Ireland centre insisted yesterday his physical condition will make the ultimate decision.

With his Leinster contract expiring in the summer, the 34-year-old’s future has been a source of ongoing speculation.

A starring role in Saturday’s victory over Wales, however, dispelled any notion of decline as he brilliantly set up one try, scored another and displayed trademark steel in defence.

Fitness has become his greatest concern as although he has fully recovered from the ankle surgery that forced him to miss the autumn, 14 years of Test rugby have taken their toll.

When asked about his retirement last week, he gave the most definitive answer yet that he was participating in his last Six Nations, but yesterday he revealed the decision remains open.

‘‘I said it because I was asked the question. I hadn’t intended causing a stir, I was just being honest in answering a question,’’ he said.

‘‘I haven’t really allowed myself to think about it. If you start thinking about retirement in six months time you’re already there.

‘‘I just want to concentrate on my rugby and enjoy it and live in the moment.”