Luke Barnatt (born 13 April 1988) is an English mixed martial artist who fought as a Middleweight for the Ultimate Fighting Championship. He was a member of FX's The Ultimate Fighter: Team Jones vs. Team Sonnen, and has also competed for BAMMA, UCMMA and RXF. At 6' 6" Barnatt is one of the tallest fighters currently competing in his weight class. Barnatt received his nickname "Bigslow" from brothers John Maguire and Tommy Maguire, for his size and being slow in response to their jokes and insults. He is a close friend to the former four-time world kickboxing champion and internet celebrity Andrew Tate.