UFC fighters react to Khamzat Chimaev's 17-second KO of Gerald Meerschaert

Chimaev needs only one punch to knock out Meerschaert (1:01)

Khamzat Chimaev needs 17 seconds and one punch to knock out Gerald Meerschaert at UFC Fight Night. (1:01)

It took Khamzat Chimaev 11 days to make UFC history in July. On Saturday night, it took him just 17 seconds to remind fight fans why he is the hottest prospect in MMA.

Chimaev knocked out Gerald Meerschaert, landing a straight right hand to the chin that forced referee Marc Smith to stop the fight 17 seconds into the first round.

Chimaev, who improved to 9-0, set a record by winning his first two UFC fights in an 11-day span in July, both in dominating fashion. So impressive was Chimaev that UFC president Dana White double-booked Chimaev, with Saturday's fight against Meerschaert followed by a meeting against Demian Maia scheduled for later in the year.

After Chimaev's win on Saturday, numerous UFC fighters, including Jon Jones, and longtime color analyst Joe Rogan took to Twitter, raving about the 26-year-old's KO.