Richard Torrez Jr was flattened by a breathtaking KO from Frank Sanchez.US heavyweight prospect Torrez Jr met Cuban technician Sanchez in a blockbuster clash on the undercard of Oleksandr Usyk vs Rico Verhoeven.Torrez Jr was crushed in a brutal KO defeat against SanchezIt was an enthralling clash with high stakes as the winner would snatch the mandatory position for an IBF world title shot.A future shot at Usyk or if he vacates was the prize, and it was Sanchez who took his chance in mesmerising fashion.It was a big opportunity for both fighters with the pressure on Torrez Jr to keep motoring and maintain his unbeaten record.The American looked lively and sharp early on, using speed and level changes to try and pick his angles early on.Sanchez was being backed up early on and Torrez Jr was controlling the early exchanges.But disaster completely struck as Torrez Jr was iced as a booming right hand crushed into the temple.He was laid flat on his back in a brutal crash to the canvas and looked as though he’d miss the count.Torrez Jr tried to return to his feet but staggered to the floor and the fight was waved off in the second round.It was a tough first career defeat for Torrez Jr who received brief treatment but was able to stand as the result was announced.View Tweet: https://t.co/FoiaUucafvSanchez reacts to brutal KO of TorrezSanchez was delighted with his brutal KO which gets him back on track, after an extended hiatus from the ring.He explained: “I had to work a lot, I knew he was a pressure fighter, that is what I was most concerned about. I know I’m a great boxer who can outbox anyone, and I stuck with the plan.“I was working with my trainer a lot because we knew he came in with his head down. “He kept telling me to throw that uppercut in the gym and in the dressing room. He kept telling me to throw that uppercut and that is what came through.”Who next for Sanchez – Usyk?For the ‘Cuban Flash’, he has written off criticism in the best way possible.Sanchez will now look upwards, and will look to enforce his position as the IBF No.1 in the coming weeks.The current title holder Usyk is likely to be otherwise engaged, with Agit Kabayel next in line to face the Ukrainian in Turkey.Watch Boxing on DAZN*If you click a link in this boxout, we will earn affiliate revenueSign up to DAZN to access the definitive subscription for boxing fans.Upgrade to DAZN Ultimate from just £24.99/month, guaranteeing access to 185+ fights annually, a minimum of 12 pay-per-views at no extra cost, as well as every Lega Serie A match and other elite football access.Alternatively, DAZN Standard is just £15.99/month, with the caveat you will have to pay for pay-per-view events.Click here to sign up.But nonetheless the 33-year-old wants his shot if it can materialise.He added: “I’ve been working the whole time in the gym with my team, kept myself right waiting for this opportunity. “It came, I took it, now I’m ready for whoever is next.“Usyk, we’re ready for you whenever you want!”