ARLINGTON, Texas – Adam Cianciarulo was ruled out of Saturday night’s Monster Energy AMA Supercross, an FIM World Championship, event at AT&T Stadium after an injury suffered during the first timed qualifying session.

The Monster Energy Kawasaki young gun went down in the session and suffered a broken left collarbone, confirmed by Kawasaki officials on social media just before 4:30 p.m. ET.

As a result, the 23-year-old Cianciarulo will not race in the second of three Triple Crown events on the Supercross schedule this season.

“(It) sucks, but it is what it is,” Cianciarulo noted on social media. “My fault.”

The two-time 250SX Class championship runner-up sat fifth in points entering Saturday’s race in Arlington, 28 behind teammate and championship leader Eli Tomac.