Rousimar Palhares vs. Tomasz Drwal Heel-Hook Gif UFC 111.
Middleweight Rousimar Palhares, who defeated Tomasz Drwal via heel-hook, was suspended 90 days for failing to release the hold. The dangerous lock, which can quickly cause serious damage to the knee of a competitor, is often banned in lower-level competitions. Palhares latched on to Drwal and cranked hard even as the Polish slugger tapped repeatedly. Palhares had to be pried off of his foe by referee Kevin Mulhall before finally releasing the hold. From mmajunkie.com