PHOENIX – Heavyweight slugger Francis Ngannou is looking to once again build the momentum that saw him challenge for the UFC title a little more than one year ago. Ngannou (12-3 MMA, 7-2 UFC) can take a big step in that direction this weekend when he takes on former champ Cain Velasquez (14-2 MMA, 12-2 UFC) in the headlining bout of UFC on ESPN 1, which takes place Sunday at Talking Stick Resort Arena in Phoenix. The event airs on ESPN following early prelims on ESPN+. Today, Ngannou addressed the media at an open workout session at the host venue. Check out the full video above. For more on UFC on ESPN 1 , check out the UFC Rumors section of the site.