Ucla's Ty Dieffenbach: From Tiktok Fame to Starting QB Role

WHO:

NY Post - Ty Dieffenbach is the starting quarterback for UCLA.

US Magazine - Ty Dieffenbach, 21, appeared in a TikTok video with JoJo Siwa, 23.

WHAT:

NY Post - Dieffenbach took a snap from the center, faked a handoff, and threw a short pass during practice.

US Magazine - A TikTok video featuring Dieffenbach and Siwa has resurfaced on social media since he stepped in for injured UCLA quarterback Nico Iamaleava.

WHERE:

NY Post - The events took place during practice at UCLA.

WHEN:

US Magazine - Dieffenbach stepped in for Nico Iamaleava on Saturday, September [exact date not provided].

WHY:

US Magazine - The resurfacing of the TikTok video coincided with Dieffenbach's new role as starting quarterback.

HOW:

NY Post - Dieffenbach completed a series of slightly longer passes during practice drills.

(UPDATED October 14, 2026 03:03 UTC)

Ty Dieffenbach has stepped up as the starting quarterback for UCLA, taking snaps and completing passes during practice drills. Meanwhile, a TikTok video featuring Dieffenbach and JoJo Siwa has resurfaced on social media, drawing attention since he took over for the injured Nico Iamaleava. The timing of the video’s resurgence aligns perfectly with Dieffenbach's new role on the team.