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.
Lionel Messi rescues Barcelona's unbeaten season as the La Liga leaders score twice in the last three minutes to snatch a 2-2 draw at Sevilla.
Manchester City will face Liverpool in a mouthwatering all-English Champions League quarter-final while Juventus have a chance to gain revenge on holders Real Madrid in a repeat of last year's final.
Barcelona coach Ernesto Valverde had already dubbed Neymar’s Barca return as just a mere fantasy but midfielder Ivan Rakitic says that the door is always open for Neymar to return to Barcelona.
Lionel Messi was away attending the birth of his son but Barcelona manage to beat 10-man Malaga 2-0 and move 11 points clear at the top of La Liga.
Is a 700m euro buyout clause enough to keep Lionel Messi at the Camp Nou?
French striker Antoine Griezmann hits a hat-trick as Atletico Madrid thrash Sevilla 5-2 to cut the gap on La Liga leaders Barcelona back to seven points.
Luis Suarez hits a hat-trick and Philippe Coutinho scores a brilliant first league goal for Barcelona as the La Liga leaders thrash Girona 6-1 to open up a 10-point lead at the top of the table.
A disallowed Luis Suarez goal sums up a frustrating afternoon for Barcelona as the leaders of La Liga dropped points for the second week running after a 0-0 stalemate with Getafe.
Brazilian midfielder Philippe Coutinho is already mesmerized by the insatiable genius of Lionel Messi and he lauds the Argentine, saying that the Barcelona playmaker was still improving.
Barcelona beat Valencia 1-0 thanks to a diving header from insatiable striker Luis Suarez to stay on course for a place in the King's Cup final for a record fifth consecutive year.
