The Blaugrana began their campaign with three consecutive 2-1 victories over Valencia, Athletic Club and Rayo Vallecano.
Flick's side then made a real statement in their most recent outing as they produced a free-scoring display to record a dominant 4-0 win over Real Valladolid to establish a four-point gap at the top of the table.
Here, Sports Mole rounds up Barcelona's injury and suspension news ahead of Sunday's meeting with Girona, who have claimed back-to-back wins over Osasuna and Sevilla.
Ansu Fati
Status: Out
Type of injury: Foot
Possible return date: September 19 (vs. Monaco)
Fati has been making good progress in his recovery from a foot injury he sustained in late July. There was a belief that he could be involved in Sunday's matchday squad, but Barcelona are keen to adopt a cautious approach and will hold off his comeback until Thursday's Champions League meeting with Monaco or next weekend's league clash against Villarreal.
Gavi
Status: Out
Type of injury: Knee
Possible return date: Unknown
Gavi has been out of action since sustaining a serious knee injury while representing Spain in November 2023. The midfielder has stepped up his recovery with a return to training, but there is still no date for when he will return to competitive action.
Fermin Lopez
Status: Out
Type of injury: Hamstring
Possible return date: September 25 (vs. Getafe)
Lopez picked up a hamstring injury in the recent international period. The midfielder sustained the issue in his first training session with Spain Under-21s, with Barcelona confirming that he would be out of action for three weeks.
Marc Bernal
Status: Out
Type of injury: Knee
Possible return date: Unknown
The 17-year-old suffered an anterior cruciate ligament injury in last month's away clash with Rayo. The club recently confirmed that Bernal had undergone a successful operation and is now expected to be out of action for 12 months.
Ronald Araujo
Status: Out
Type of injury: Hamstring
Possible return date: Unknown
Araujo has missed the start of the season after undergoing hamstring surgery in July, and he is not expected to return to competitive action until the latter stages of 2024.
Frenkie de Jong
Status: Out
Type of injury: Ankle
Possible return date: Unknown
De Jong is still struggling with an ankle injury he picked up in El Clasico against Real Madrid in April. The club have reportedly recommended surgery, but the midfielder is reluctant to undergo an operation.
Andreas Christensen
Status: Out
Type of injury: Achilles
Possible return date: Unknown
Christensen remains unavailable for selection after missing the last three matches and Denmark's recent international fixtures due to an Achilles problem.
BARCELONA'S SUSPENSION LIST
Barcelona have no players suspended for the league meeting with Girona.