Athletic have been through years of heartache, having lost their previous six consecutive Spanish cup finals and a Europa League final to Atletico Madrid in 2012.

But roared on by around 50 000 fans who invaded Seville and outnumbered Mallorca's supporters at a sold-out La Cartuja stadium which holds 60 000 spectators, Athletic put all their trauma behind to pull out the long-awaited victory in a hard-fought final.

Their 23-year-old keeper Julen Agirrezabala, who made a couple of brilliant saves during the game, saved one spot kick in the shootout from Mallorca's Manu Morlanes, while Nemanja Radonjic skied his effort.

Athletic's penalty takers meanwhile were flawless in their execution, scoring four in a row to secure the win that crown a brilliant season under the calm guidance of ex-Barca manager Ernesto Valverde, in which they are also bidding for a top-four LaLiga finish.

--Reuters--