TEHRAN Iranian freestyle wrestler Sobhan Yari claimed a gold medal in the U20 World Championships.Yari defeated Armenian wrestler Mushegh Mkrtchyan 5-0 in the final bout of 79kg.Ahmad Mohammadnejhad in 57kg, Hossein Mohammad Aghaei in 70kg, and Amirali Azarpira won three bronze medals.The U20 World Championships are being held in Sofia, Bulgaria.Medal match results57 kgGOLD Jore VOLK (USA)SILVER Merey BAZARBAYEV (KAZ)BRONZE Abhishek DHAKA (IND)BRONZE Ahmad MOHAMMADNEZHADJAVAN (IRI)70 kgGOLD Kanan HEYBATOV (AZE)SILVER Mitchell MESENBRINK (USA)BRONZE Hossein MOHAMMAD AGHAEI (IRI)BRONZE Mulaym YADAV (IND)79 kgGOLD Sobhan YARI (IRI)SILVER Mushegh MKRTCHYAN (ARM)BRONZE Otari ADEISHVILI (GEO)BRONZE Mukhammad ABDULLAEV (KGZ)97 kgGOLD Ben KUETER (USA)SILVER Rifat GIDAK (TUR)BRONZE Amirali AZARPIRA (IRI)BRONZE Niraj NIRAJ (IND)