Stanfill made his international debut against in May 2005, at the age of 19.stats at scrum.com Stanfill was included in the USA squad for the 2007 Rugby World Cup, where he scored a try against both and in the Eagles' pool matches. Stanfill also scored a try against Uruguay in a 2009 qualifying match for the 2011 Rugby World Cup.USA Rugby, Player Profile, Stanfill also played at the 2011 Rugby World Cup, where he started 3 matches, and co-lead the team in tackles in the USA's matches against Ireland (11 tackles) and Russia (9 tackles). Stanfill finished his career competing in the 2015 Rugby World Cup in England, starting for the Eagles against heavy favorites South Africa in Olympic Stadium. Louis finished his career with 56 caps, 6th most in USA Rugby history.
