I hope that does not interfere and wont influence on his performance, or the fight got cancelled (previously, Olivera got eye cut in 2 weeks before fight against Makhachev and the fight got cancelled). Btw, he is an underdog in a fight against Tsarukyan.
I think this will not affect Oliveira's performance too much later, at first glance it can be seen from the picture if the wound obtained is a bit small so that the possibility of healing will be faster, at this time Oliveira should focus on training before facing Arman Tsarukyan who is also famous as a strong fighter and has many advantages, especially if you see when Tsarukyan fought with Makhachev, didn't he capable of being a very tough opponent for Makhachev at that time and it even took longer for Makhachev to defeat Tsarukyan than when Makhachev fought oliviera at Ufc 280.
I think the fight between Makhachev vs. oliviera was deliberately canceled because Makhachev is currently injured and he is doing Ramadan fasting and it is only natural for Makhachev to cancel the fight which was planned to be played this year, but in an article I have read that actually oliviera is not a priority for Makhachev when he returns to the ring and reportedly Makhachev wants to fight Justin Gaethje more Rather than Oliviera when the month of Ramdhan ends.