Pep Guardiola's side will monitor the fitness of the Brazilian after he picked up a knee injury in a friendly loss to Karlsruher.
Rafinha is a doubt for Bayern Munich's clash against Hamburg on Friday due to a knee injury.
The fullback sustained the knock in Bayern's 2-1 friendly defeat against Karlsruher and will be unable to train over the coming days.
"Rafinha sustained some knee bruising in [Saturday's] loss and be out of action for the next few days," Bayern confirmed via Twitter.
Bayern is set to resume its Bundesliga campaign at Volksparkstadion having opened up an eight-point lead over Borussia Dortmund before the mid-season break.