Barca remain on 34 points and lead second-placed Real Madrid by four but their rivals now have two games in hand, while the victory moved Las Palmas up to 14th place on 15 points.
Barcelona cited UEFA rules preventing clubs from changing stadiums during the Champions League's opening phase and "the logistical difficulties and extra costs" if they kept open two grounds at the same time.
A product of Barcelona's youth academy, Bernal has made three league appearances since his debut for the senior team in their LaLiga opener against Valencia.
Barcelona's next away game is at Serbian club Crvena Zvezda in Belgrade on November 6.
Olmo will miss Barcelona's opening Champions League matches against Monaco and Young Boys.
The German coach took charge of his first home match since he was appointed in May.
Barcelona signed Spain star Dani Olmo from RB Leipzig on Friday for a reported 60 million euros ($65 million).
New Barcelona coach Hansi Flick on Thursday hailed the performance of the Spanish club's teenage winger Lamine Yamal at Euro 2024, calling it "unbelievable".
The No. 19 at Barcelona previously belonged to Vitor Roque for a brief period.
Xavi has insisted there has been no change to his decision to leave Barcelona at the end of the season.
Having come through the fabled academy at Barcelona, Arteta has a long-standing connection to the Camp Nou.
The Spanish champions are languishing in third place in La Liga.
Music streaming service Spotify have sponsored Barcelona since the 2021/22 season but now rock fans can finally get some satisfaction.
Bayer Leverkusen manager Xabi Alonso has extended his contract by two years to 2026, the Bundesliga club announced on Friday.
Spain full-back Jordi Alba says he is targeting more trophies after re-uniting with former Barcelona teammates Lionel Messi and Sergio Busquets at Inter Miami.
Inter Miami co-owner Jorge Mas spoke to the Offside with Taylor Twellman podcast, and revealed that the American club will help Messi return to Camp Nou in some capacity.
LaLiga champions Barcelona have been provisionally cleared to compete in next season's Champions League, European soccer's governing body UEFA said on Thursday, amid investigations into the Spanish club's involvement in a refereeing scandal.
Last month Spanish prosecutors charged the Catalan club with corruption after payments of more than 7.3 million euros ($7.8 million) to a company owned by a former refereeing chief were uncovered earlier this year
FC Barcelona’s actions off the pitch keep on bringing attention for all the wrong reasons.
