Complex sentence: His elder son, Arsen Julfalakyan, is also a wrestler and won an Olympic silver medal at the 2012 Summer Olympics in London for Armenia and bore the national flag at the closing ceremony.
Split into simpler sentences: His elder son, Arsen Julfalakyan, is also a wrestler. He won an Olympic silver medal at the 2012 Summer Olympics in London for Armenia and carried the national flag at the closing ceremony.