Jimmy O'Brien scores after a brilliant chip-and-chase against Cardiff Blues at the RDS Arena in the #GuinnessPRO14. Subscribe to Leinster Rugby TV: http://bit.ly/2W2JS6R Follow all Leinster Rugby games with live score updates and text commentary in the Leinster App: Download for Apple: http://apple.co/2cX7iTk Download for Android: http://bit.ly/2bVraTy Like us on Facebook: https://www.facebook.com/leinsterrugby/ Follow us on Twitter: https://twitter.com/leinsterrugby Follow us on Instagram: https://www.instagram.com/leinsterrugby/ Sign up to our eZine: http://www.leinsterrugby.ie/news/ezine #LeinsterRugby