Gianluca Caprari pulled one back for Benevento in the 34th minute, before Hakimi got his first goal for his new club in the 42nd minute.
Although Betis had over 70 percent of the possession in the first half, they were 3-0 down at the break after Angel Rodriguez scored twice and Marc Curcurella netted Getafe's other goal.
Celta held Barca to a 2-2 draw last season, with Iago Aspas netting a late equalizer and the now departed Luis Suarez scoring twice for Barca, so Thursday will be an indication as to how the two teams have evolved in the last three months.
While Barca's pre-season was all about veteran players leaving and Leo Messi wanting to leave the club, their league debut at home to Villarreal was all about Ansu Fati. The 18-year-old was at the heart of nearly all the good things his side did in the first half as they went 4-0 up in just 45 minutes to assure Ronald Koeman a placid debut as coach. He scored the first two goals with an exhibition of cool finishing and then provoked the penalty which Messi slotted away to make it 3-0.
ADAPT TO THE NEW NORMAL
News of the transfer comes in the wake of Manchester City's 5-2 thrashing at home to Leicester City in the Premier League on Sunday afternoon. The game is the first time a side coached by Pep Guardiola has conceded five goals at home and once again served to highlight the problems at the heart of his side's defense.
Shijiazhuang will go to the Dalian division, where the relegation competition is held. Their first opponent is the Dalian Pro, coached by Spaniard Rafael Benitez. Enditem
He then showed his goal scoring instincts remain completely intact by nodding home Atletico's fifth goal before then adding a sixth from close range in a 25 minute cameo which implies that if Barca wanted him out, it wasn't just for footballing reasons.
The Italian rising star ripped 11 games in a row to defeat the Belgian for the second time in as many head-to-head meetings.
Paco Alcacer put Villarreal ahead after 12 minutes and although Edgar Mendez took advantage of a bad mistake from home keeper Sergio Asenjo 10 minutes before half-time, Gerard Moreno's VAR-assisted penalty allowed Villarreal to retake the lead on the stroke of half-time.
The defender was then shown a direct red card in the 67th minute on the instruction of VAR for bringing down Luka Jovic when the striker looked to be through on goal.