Renowned trainer Derrick James breaks down Sunday night's SHOWTIME pay-per-view featuring pound for pound entrant and superstar Gervonta "Tank" Davis putting his world lightweight title on the line against the hard-hitting Isaac "Pitbull" Cruz. James also offers updates on Errol Spence Jr., Jermell Charlo, Marcus Browne and Frank Martin. Plus, hosts Kenneth Bouhairie and Michael Rosenthal recap last weekend's action, break down the Davis-Cruz card & list their top five biggest punchers today.