The smile of BJJ, world champion, Mackenzie Dern: “To get appreciated in jiu-jitsu, girls have to prove themselves even more”

Feb 14, 2012BJJEE3

1.Hi Mackenzie, can you introduce yourself to the bjj community of Eastern Europe? My name is Mackenzie Dern and I am a Brazilian jiu-jitsu brown belt for Gracie Humaita. I am 18 years old and I have...