Brennan announced his retirement on March 13th 2007, after he jumped into a section of the crowd housing Ulster supporters during a Toulouse v Ulster on January 21st, 2007 at Stade Ernest Wallon and struck Ulster fan Patrick Bamford.
After he jumped into a section of the crowd housing Ulster supporters during a Toulouse v Ulster on January 21st, 2007 at Stade Ernest Wallon and struck Ulster fan Patrick Bamford. This was what Brennan announced his retirement on March 13th 2007.