I started my pairings just after Christmas. To be honest I was a bit surprised to see that last night and immediately felt horrible that I hadn't noticed it sooner. I hadn't noticed any locks with him and his girl, but I also just left them completely alone for the times they were paired. Maybe he's just an aggressive breeder?

Hopefully he'll heal quickly and with no problems, and I'll make a note of it in his records so he can be watched for it in seasons to come. Some guys just can't handle the pressure I guess.