World champion kickboxer Nieky Holzken recently showed off his incredibly quick reflexes. The video was shared by ONE Championship, where Holzken is seen hitting flashing buttons at a rapid speed.ONE Championship's caption reads:"Button mashing at its finest!"ONE Championship@ONEChampionshipButton mashing at its finest! @niekyholzken #WeAreONE #ONEChampionship5:00 AM · Apr 6, 2022739Button mashing at its finest! 🔘 @niekyholzken #WeAreONE #ONEChampionship https://t.co/qbLgp5llS5Good reflexes for kickboxers are paramount as they can make the difference between winning and losing. Even after over 120 kickboxing matches, Holzken's skills and speed look sharp. In the clip, Nieky Holzken rapidly strikes buttons with flashing lights to improve his reaction time and speed.'The Natural' is a world champion kickboxer who has competed in GLORY Kickboxing and K-1. He has been fighting in ONE Championship since 2018. Most recently, he had a fight at ONE X against Thai striker Sinsamut Klinmee, which he lost via second-round knockout. Now, he wants revenge.ONE Championship@ONEChampionshipDown for the count Sinsamut Klinmee SHOCKS THE WORLD with a one-punch knockout of Nieky Holzken! #WeAreONE #ONEChampionship#ONEX | PPV: 8PM SGT/8AM ET | Order PPV: Watch.ONEFC.com8:03 AM · Mar 26, 202247385Down for the count 😱 Sinsamut Klinmee 🇹🇭 SHOCKS THE WORLD with a one-punch knockout of Nieky Holzken! #WeAreONE #ONEChampionship#ONEX | PPV: 8PM SGT/8AM ET | Order PPV: Watch.ONEFC.com https://t.co/UM7W3s8QLiNieky Holzken looking to avenge loss at ONE XOn March 26 at ONE X, Holzken suffered a knockout loss to Klinmee. Prior to the fight, the Dutch kickboxer was putting together a small win streak in the promotion. He debuted in ONE with two wins before losing two title fights. He then picked up two victories, followed by the most recent loss.Now, Holzken wants revenge. In an Instagram exchange, he sent a message to his most recent opponent:"Rematch will be [fire]. Congrats [for] now. [ONE Championship] see you soon #respect."Klinmee made his intentions clear with his response:“I think it won’t be fun [if] you [lose by] KO again.”Catch their full exchange below:Screengrab from Holzken's InstagramIf Klinmee passes on the fight, then Nieky Holzken may have to look at new challengers. He called out Jake Paul on Instagram in late 2021, after 'The Problem Child' defeated former UFC champion Tyron Woodley in their boxing rematch.Holzken doubled down on Twitter:“Hey @jakepaul im waiting”Nieky Holzken@niekyholzkenHey @jakepaul im waiting5:18 AM · Sep 1, 202161455Hey @jakepaul im waiting https://t.co/aTL1wHnKRKHolzken carries a very impressive record of 94-17 in kickboxing and has held many titles to his name. He has victories over opponents such as Murthel Groenhart, Raymond Daniels, Joseph Valtellini, and Cosmo Alexandre, among others. His next bout in ONE Championship will likely be in late 2022. Regardless of the opponent, fans of the Dutch striker will be looking forward to his fight.Nieky Holzken@niekyholzkenDebut 17-11-2018 @ONEChampionship @YODCHATRI #teamholzken #weareone9:04 AM · Nov 24, 201827645Debut 17-11-2018 @ONEChampionship @YODCHATRI #teamholzken #weareone https://t.co/Oc6F66Ptai