He's refined himself vastly over the years, but there's no denying that Robbie Lawler has always possessed a top-flight killer instinct.
Once considered a one-trick pony, the UFC's second-ranked welterweight has improved every facet of his game since beginning his second stint with the UFC—including his incredible knockout dexterity.
Lawler joined American Top Team before his return to the UFC in early 2013, a choice that's helped him morph from a rough-around-the-edges brawler to a downright surgically precise knockout artist.
While "Ruthless" is finally beginning to reach his potential as a mixed martial artist, the 32-year-old Pat Miletich disciple has always packed extraordinary KO power. Of his 23 career wins, 19 have come via KO.
Here are the five best knockouts of Lawler's career.