WATCH: Liam Harrison showcases his devastating ‘death touch’ left hook 

Liam Harrison has posted a highlight reel of his vicious left hook knocking out several opponents.

‘Hitman’ has established himself as one of the best knockout artists in ONE Championship. According to his Instagram, Harrison holds a lifetime record of 91-25-2 with 51 KOs.

The 37-year-old is still an active fighter, but he took some time to acknowledge his previous success. 'Hitman' posted an Instagram video showing a compilation of his signature left hook with the caption:

“Death touch ☠️ #knockout #lefthook #muaythai”

Harrison made his ONE debut in 2018 as a 3x Muay Thai world champion. Despite already being 34 years old at the time, expectations were high for how well he would do on the global stage. He struggled at first before turning everything around. ‘Hitman’ started his ONE tenure competing at featherweight, losing his first two fights against Petchmorakot Petchyindee and Rodlek PK.Saenchai.

It turns out Harrison was fighting in the wrong division. After taking time off for nearly two and a half years, he moved down to the bantamweight division, winning his next two fights against Mohammed Bin Mahmoud and Muangthai PK.Saenchai.

'Hitman' then earned a world title shot against Nong-O Gaiyanghadao but lost in the first round at ONE on Prime Video 1 due to an injury he sustained to his leg.

Watch Liam Harrison knock out several past opponents with his vicious left hook on Instagram below:

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What’s next for Liam Harrison?

Earlier this month, Liam Harrison was rumored to be fighting Floyd Mayweather in boxing. Unfortunately, the 37-year-old missed out on the opportunity because of a knee injury that required surgery. After Mayweather found a new opponent, Harrison posted an update on Instagram by saying:

“Glad Floyd’s found a new opponent. Got my knee surgery next week, so I’ll be 100 percent ready and waiting the next time he wants to come back and fight on these shores #boxing #muaythai #padwork @darrellkendall_”

Assuming the fight against Mayweather won’t be happening, Harrison still has the ONE bantamweight division to return to. He’s currently the No.4 ranked contender. The only ranked opponent ‘Hitman’ has lost to is No.3 ranked Rodlek.

Therefore, fellow ranked contenders Alaverdi Ramazanov and Felipe Lobo, both coming off a loss to Nong-O, could be possible opponents when the 37-year-old recovers from his knee injury.