Félix Barderas Sierra (born 6 October 1943), commonly known as Felines, is a Spanish retired footballer who played as a left winger, and a current manager.
Born in Pedro Bernardo, Ávila, Castile and León, Felines joined Rayo Vallecano in 1965 after only playing amateur football in Madrid,[1] and made his professional debut on 5 September, playing the full 90 minutes in a 3–0 home win against CD Badajoz in the Segunda División championship.
Felines appeared regularly with Rayo in the following campaigns, netting a career-best seven goals in 1972–73 and achieving promotion to La Liga in 1976–77 after featuring in all league matches.
He made his debut in the main category of Spanish football on 13 November 1977, coming on as a late substitute in a 3–1 home win against Sporting de Gijón.
Felines led the club to an impressive second place in the 1988–89 campaign, but was sacked in January 1990 after a poor season in the main category overall.