Yesterday marked an important deadline for the Los Angeles Rams and star defensive lineman Aaron Donald in his ongoing contract holdout. The team also recently brought in free agent defensive end Tyson Jackson for a workout and had to make some changes at wide receiver.

What deadline did Donald's holdout pass?

Yesterday was the deadline for contracted players to report to their teams to earn an accrued season for free agency. Aaron Donald has two years left on his contract and since he did not show up, this year does not count toward those two years on his deal.

However, since he still has two years left on his deal a fourth year of service will not affect him and will only be an issue if he holds out to this point next season.

With each day of training camp Donald misses, he is racking up $40,000 dollars per day in fines. If he were to miss games, he would lose out on checks of more than $105,000 per week. Donald, along with Raiders left tackle Donald Penn and Texans left tackle Duane Brown are the only veterans under contract holding out from training camp.

Rams workout free agent Tyson Jackson

A source told ESPN's Adam Schefter on Tuesday that the Los Angeles Rams would be working out free agent defensive end Tyson Jackson. Jackson was the third overall pick in the 2009 NFL Draft by the Kansas City Chiefs.

He spent his first five seasons with the Chiefs, before spending the last three with the Atlanta Falcons.

With the Rams losing starting defensive end Dominique Easley for the season about a week ago to a torn ACL they need help on the defensive line. Jackson is an experience 3-4 end, despite being underwhelming during his time with the Falcons.

In his career, the 31-year-old has played in 122 games and started 90 of them. He has 265 total tackles, 9 sacks and 16 passes defended.

A change at wide receiver

The Los Angeles Rams announced two days ago that they waived receiver Marquez Bradley, who had been nursing a knee injury. Marquez has since cleared waivers and the Rams have now placed him on injured reserve (IR).

He will either spend the season on IR or be released by the team if the two sides agree on an injury settlement. Either way, Bradley will be gone, meaning that 11 of the team's 13 receivers are rookies or second-year players.

Meanwhile, second-year receiver Mike Thomas has come off the physically unable to perform (PUP) list after recovering from his hamstring injury. He can now practice and play in preseason games but is suspended for the first four games of the regular season for violating the NFL's performance enhancing drug policy.