Jason Anderson was injured in a practice crash on Monday, according to reports from RacerXOnline.com.
The team reports that Anderson broke his arm in two places, which will require surgery. He also sustained a fractured rib.
Anderson is expected to miss at least eight weeks and there is no firm date scheduled for his return.
“I am really bummed to have to say that I am out for an injury,” Anderson said. “I was struggling to find my groove but had high hopes of pushing forward to the podium in all of the upcoming rounds. I will be back stronger. Thank you for the support.”
Anderson stood on the podium at Glendale in Week 2, but his other results have been outside the top five.
Anderson joins Malcolm Stewart on the injury list, just three weeks into the season.