Donald Cerrone sparring with Anthony Pettis isn't really something we thought we'd see.
After all, Pettis (18-4) defeated Cerrone (29-7-1) back at UFC on FOX 6 via first-round liver kick and has even gone as far as saying he doesn't respect the Colorado native as a person. So you can imagine how interesting a training session would be between the two seasoned Ultimate Fighting Championship (UFC) Lightweight contenders.
However, it makes sense that "Showtime" and "Cowboy" would openly put their past in the past and move forward as cordial partners in crime.