This is nuts.
MMA fighter Christian Lohsen of the Professional Fighters League just revealed he had to have a testicle removed after it ruptured during training this week ... and the crazy part?? He's already cracking jokes about it!!
The 26-year-old out of Florida shared the cringeworthy news on Thursday ... saying, "So last night was rough ... in a training accident I got my left testicle ruptured by a knee which led to it getting surgically removed."
Lohsen says the procedure went well and he's at home and recovering .