Ariel Helwani of FUEL TV and SB Nation brought word, during a segment on "UFC Tonight," that MacDonald has been finding the process "annoying."
Conversely, Helwani reported that Penn is enjoying the testing, and he has no problem placing himself under the magnifying glass if it means he can prove he's a clean fighter and possibly expose those who aren't playing by the same set of rules.
His position as translated by Helwani:
"B.J. loves this. B.J. is the guy who was talking about VADA before anyone in the MMA. He is a proponent because it makes sure everyone is healthy and safe. He believes there are cheaters in the sport and he wants to make sure he is not fighting one of them. So, he is enjoying these tests. You know motivation has always been a question for B.J., but when you consider the fighters he has surrounded himself with he is very motivated to fight. B.J. is surrounding himself with top names in MMA such as Jay Hieron, Tarec Safieddine, Tyron Woodley from Strikeforce, Pat Healy, Josh Thomson and Ben Askren and this makes it interesting to see how that translates come December 8."
Thus far, no results for either fighter have been released.