Martins began his career in coaching at Sporting CP as a youth coach. He won national titles for their Under-17 and Under-19 sides, working with players such as Cristiano Ronaldo, Nani and Joao Moutinho. He was appointed Assistant Manager during the 2004-2005 season when Sporting reached the final of the UEFA Cup. During the 2006-2007 season he managed Portimonense S.C.. In 2008, Luís was appointed head of youth development by S.C. Braga. In 2010, he coached Saudi Arabia's national and Olympic teams. On 9 July 2012, Luís_Martins was appointed first-team coach at Tottenham Hotspur.