Andrew Selby entered this fight with a perfect record of 11-0-0 (6 knockouts) and he is ranked as the No.5 flyweight in the world (currently the #1 in this division is Kosei Tanaka).
Julio Cesar Martinez Aguilar has a boxing record of 13-1-0 (10 KOs=77%) and he entered as the No.11 in the same weight class. He suffered his only loss at his pro boxing debut against Joaquin Cruz in 2015 (via split decision), since then he has won 13 consecutive bouts taking revenge on Cruz in 2016 and beating Irvin Ordaz in 2019.
Result: Julio Cesar Martinez Aguilar def. Andrew Selby (KO at 0:57, round 5).