Atletico moved ahead in the early stages of the second period through Koke and the Spaniard's effort was enough for Atletico to move above Barcelona into first spot.
Read how it all unfolded in Sports Mole's minute-by-minute live commentary of the action below.
BILBAO: Iraizoz; Iraola, San Jose, Laporte, Balenziaga; Iturraspe, Rico; Susaeta, De Marcos, Muniain; Aduriz
ATLETICO: Courtois; Juanfran, Godin, Miranda, Luis; Gabi, Suarez; Sosa, Koke, Garcia; Costa
1 - Athletic have lost just one of their last 12 league games (W6 D5); their 1st ever home defeat in the new San Mames (v Espanyol). Lions.— OptaJose (@OptaJose) March 29, 2014
4 - Muniain is one of only four players to have scored against Atlético and Barcelona in La Liga this season. Eagle— OptaJose (@OptaJose) March 29, 2014