The Los Angeles Rams are holding their first of two joint practices today as they visit the Dallas Cowboys ' training camp facility in Oxnard. It's an important day for the Rams' starters because they won't play in the preseason, so this will be their primary exposure to other teams before Week 1.

The Dallas Cowboys are taking the field Tuesday along with their preseason-opening opponent, the Los Angeles Rams, in a joint practice. Below, we’ll provide updates and observations from our Cowboys insiders as the workout progresses:

Sports Illustrated NFL reporter Albert Breer said that the injury to Alaric Jackson could have a massive impact on this offense.

While Matthew Stafford is dealing with a back injury and not practicing at training camp, the Los Angeles Rams reportedly expect him to take the field for their Week 1 game against the Houston Texans.

Stafford has yet to practice in camp due to a back injury, which has raised concerns among Rams fans about the status of their 37-year-old QB. Over the weekend, Sean McVay called him "week-to-week" and noted that while he's making good progress,