[autotag]Lone'er Kavanagh[/autotag] kicked off Dana White's Contender Series, Season 8 with a bang Tuesday when he scored a knockout that left the UFC CEO writing "holy sh*t" on his bout sheet.

In the season opener, Kavanagh (7-0) clobbered previously undefeated [autotag]An Tuan Ho[/autotag] (6-1) with a brutal left hook that ended the fight at 2:35 of Round 1. The bout took place at DWCS 67 at the UFC Apex in Las Vegas.

Ho was down on the canvas for an elongated period of time, blankly staring into the distance as his corners, medical staff, and referee Herb Dean tried to assist him in coming back to. Eventually, Ho rose to his feet under his own power but was not present for the reading of the official decision.

Kavanagh, 25, is the latest Cage Warriors product to make an impression on the UFC brass. The knockout Tuesday was the fifth of his seven-fight career. The win was the fifth in a row where Kavanagh defeated a previously unbeaten fighter.

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Dana White's Contender Series 67: Best photos from Las Vegas

The up-to-the-minute DWCS 67 results include:

• Lone’er Kavanagh def. An Tuan Ho via knockout (punch) – Round 1, 2:35

For more on the card, visit MMA Junkie’s event hub for DWCS 67.

This article originally appeared on MMA Junkie: Video: Lone'er Kavanagh kicks off Dana White's Contender Series with scary KO of An Tuan Ho