Atletico Madrid edged out Athletic Bilbao 2-1 at San Mames thanks to second-half goals from Angel Correa and Yannick Ferreira Carrasco.
Los Rojiblancos were fortunate not to find themselves behind at the interval as Aritz Aduriz had a penalty saved by Jan Oblak.
Correa opened the scoring 55 minutes in following some fine interplay between Antoine Griezmann and Koke, before Carrasco came off the bench to tuck home a second, rendering Raul Garcia's late strike a mere consolation.
Relive how the 90 minutes of action unfolded with Sports Mole's live text coverage below.
STARTING XI: Oblak; Gimenez, Savic, Godin, Filipe Luis; Gaitan, Saul, Thomas, Koke; Correa, Griezmann
SUBS: Moya, Lucas, Juanfran, Carrasco, Gabi, Torres, Gameiro
STARTING XI: Arrizabalaga, Martinez, Nunez, Laporte, Balenziaga, San Jose, Iturraspe, Susaeta, Garcia, Muniain, Aduriz
SUBS: Herrerin, Boveda, Benat, Williams, Etxeita, Vesga, Cordoba
Jose Angel Ziganda: "I have no reason to not be optimistic regarding Kepa's renewal. It's not that I want to fool myself but, as long as I can, but I prefer to think positively rather than negatively. I see him calm and very well."
Diego Simeone: "Having a deeper squad has improved the level of competition within the team. Lucas, Thomas, Gaitan, Vietto – they have all raised their game. We have always thought that having more competition would give us the possibility to choose the players which are best suited to each game."
ATHLETIC BILBAO SUBS: Herrerin, Boveda, Benat, Williams, Etxeita, Vesga, Cordoba
ATLETICO MADRID SUBS: Moya, Lucas, Juanfran, Carrasco, Gabi, Torres, Gameiro