"Andrew Trimble and Liam Williams Carded for Fighting as Ulster Progress to Final."Rugby Videos of Tackles, Tries, Funny Incidents and More – Rugbydump.com. N.p., n.d. Web. 11 May 2013. <http://www.rugbydump.com/>.
"Rugby Union | Statsguru | ESPN Scrum." ESPN Scrum. N.p., n.d. Web. 11 May 2013. <http://stats.espnscrum.com/statsguru/rugby/stats/index.html>.