The 2015-16 campaign delivered ultimate heartbreak for Rayo Vallecano, as Rayistas finished a perilous 18th in La Liga, resulting in a devastating relegation to the Segunda División which ended their longest-ever five-year stay in the top flight. Leading the line was veteran striker Javi Guerra, whose 12 goals proved vital in the desperate, unsuccessful fight for survival. The turbulent year is also remembered for the introduction of their iconic, rainbow-striped 'anti-intolerance' away kit, a defining emblem of the club's principles amidst the struggle.