[5] Wallace scored the fourth try in Munster's win over Sale in the 2005–06 Heineken Cup to take the Irish province into a home quarter-final against USA Perpignan.
[10] Wallace became the sixth player to reach 200 caps for Munster against Leinster during the 2011 Magners League Grand Final, a game in which he won the Man of the Match award.
[11] Having returned to full training after the knee injury that ruled him out of the 2011 World Cup and 2012 Six Nations, Wallace was named in the Munster squad to travel to Aironi on 7 March 2012.
[19] On 10 June 2000, Wallace was part of the Ireland team that recorded their largest win by beating the United States 83–3.
He only played in five games for Ireland until returning to start in the Triple Crown victory over Scotland in the 2004 Six Nations Championship — scoring a vital try in the process.
[21] Wallace kept his place in the Ireland team for the November Tests in 2009, and played a crucial role in the win over South Africa.
Wallace was in outstanding form for Munster throughout the 2009/10 season, and was selected in Ireland's squad for the summer tour to New Zealand and Australia.
However, a knee injury sustained during Ireland's final warm-up game against England ruled Wallace out of the tournament in New Zealand.
Professional rugby has exploded in popularity and changed beyond all recognition in this country since I began and I feel honored to have played witness to its massive improvement.
I'd like to thank anyone who has helped me and had faith in me during my 15 year professional career including family, teammates, coaches, medics, friends and not least supporters.
I will be looking to step away from rugby and explore a few different business opportunities while also looking forward to being able to spend more time with my wife Aileen and sons Andrew and Harvey.