Karina Smirnoff & Brad Penny Not Getting Married

Below is a picture of Karina Smirnoff and partner J.R. Martinez punking Cheryl Burke during some happy times during intense rehearsals at Dancing With The Stars.

According to Radar Online, Smirnoff's engagement with baseballer Brad Penny is off. The following video is of Karina talking about her relationship during finals.

Was trouble in the relationship due to both Penny and Smirnoff's successful careers that demanded so much time away from each other?