Original sentence: In the next years he was a few times scheduled against quality opposition (like for example against Hasim Rahman in 1999 where his late replacement Oleg Maskaev then knocked Rahman out of the ring in a well remembered fight), but he always had to pull out due to injuries and, and he ultimately had to finish his career due to an undisclosed illness
Edited sentence: In the next years he was a few times scheduled against quality opposition (like for example against Hasim Rahman in 1999 where his late replacement Oleg Maskaev then knocked Rahman out of the ring in a well remembered fight), but he always had to pull out due to injuries and he ultimately had to finish his career due to an undisclosed illness