Arman Tsarukyan (Russia) defeated 31-year-old Christos Giagos (USA) at the UFC Fight Night 192 Saturday in Las Vegas, USA.
The 24-year-old Armenian fighter beat his opponent in the third minute of the first round by TKO.
Immediately after the fight, Tsarukyan challenged Dan Hooker (New Zealand), the No. 8 in the UFC lightweight rankings.
Arman Tsarukyan now has 17 wins and has suffered 2 defeats in the UFC, while Christos Giagos has 19 wins and 9 losses.