Former UFC middleweight champion Anderson Silva, and former heavyweight boxing champion Evander Holyfield are both two of the most dominant fighters in their respective sports. In a newly released video, both Silva and Holyfield can be seen breaking down some of their favorite combinations.

While Holyfield has been retired from Boxing for quite some time, Silva is currently engaged in a bit of a standoff with his employers. After snapping a losing streak by defeating Derek Brunson earlier this year, Silva has most recently called for an interim middleweight title fight while Georges St-Pierre fights Michael Bisping for the middleweight title.

Silva stated that if the UFC wasn’t going to create an interim middleweight title to keep the middleweight division active leading up to a Bisping vs. St-Pierre fight, he would likely retire. UFC President Dana White stated that if Silva was thinking about retirement, he should probably go ahead and retire.

This article first appeared on BJPenn.com on 5/9/2017.