He is currently wearing a cast but Neuer picked up the injury in February, and he missed two Bundesliga games last month.
But the shot-stopper has returned in recent weeks despite still being forced to wear a cast.
The Bayern captain said: "My thumb was injured since February 1 and I have to wear this cast but I haven't checked on it because I am focused on the matches but nothing is hurting with my injury."
Neuer will come up against Liverpool goalkeeper Alisson tonight, if the German has been passed fit.
Do Liverpool have an advantage over Bayern Munich with key star INJURED? (Image: GETTY/BTSPORT)
Manuel Neuer missed two games due to injury but has played since (Image: GETTY)
Alisson is in his debut season with the Reds and has impressed so far for Jurgen Klopp.
The Brazilian has shone as Liverpool hunt down their first ever Premier League title.
And that has led to some comparisons with Neuer, who helped Germany to World Cup victory in 2014.
But Alisson does not think he is on the same level as Neuer yet.
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