The Oakland Raiders had their rookies report to training camp Tuesday.

This is the most important rookie classes in several years for the franchise. Not only is the group expected to be the foundation of a complete rebuild in the second year of the Jon Gruden 2.0 tour with the team. But it also features three first-round picks, as part of the franchise-altering trades of stars Khalil Mack and Amari Cooper. So, much is expected from this class and it’s expected right away.

Several Raiders' rookies will get a chance to play immediately. Here is a look at what to expect:

Clelin Ferrell, EDGE, Clemson: He was the surprise No. 4 overall pick. Many league observers thought Ferrell was going to be a late first-round pick. But, Gruden and new Oakland general manager Mike Mayock think Ferrell can be a cornerstone player.

He should start right away. The Raiders had an NFL-low 13 sacks in 2018. They need Ferrell to produce an instant pass-rush boost and be a leader on a growing defense.

Josh Jacobs, RB, Alabama: The Raiders selected Jacobs with one of the first-round picks they landed in the Mack trade, making him the first running back off the board. He was a part-time player for the Crimson Tide, but he has to be ready for significant work in the NFL.

Gruden is going to work Jacobs in both the rushing and receiving game, and he has the skills to excel in Gruden's system. Scouts are unsure if he can become a special player, but Jacobs has a chance to be extremely productive as a rookie.

Johnathan Abram, S, Mississippi State: It wouldn’t shock me if Abram begins his career as the best of the Raiders’ 2019 first-round picks. He is a heady player and an ‘alpha dog’ type. A player like Abram can change the personality of a defense that badly needs a boost.

Trayvon Mullen, CB, Clemson: He was productive for the National Champions. Some scouts are mixed on Mullen; I think he is a boon-or-bust type. If he has a good preseason, he will work his way into the playing rotation.

Maxx Crosby, DE, Eastern Michigan: The fourth-round pick has been compared to Jared Allen. Mercy. That’s some pressure. First, let’s see if the kid can stick on the roster. But, there’s no doubt, the Raiders have room for young pass-rushers. So, Crosby will get a chance to make an early impact.

Isaiah Johnson, CB, Houston: It is interesting that the Raiders drafted both Mullen and Johnson because they do have several young cornerbacks. So, there is going to be quite the competition. The Raiders really like Johnson's tenacity on the field.

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Foster Moreau, TE, LSU: The Raiders are looking for tight ends to emerge, and Moreau should certainly make the team. Tight ends often take time to develop, so don’t expect miracles from this LSU product early. But, he is a smart, strong leader who has a chance to someday become a quality player.

Hunter Renfrow, WR, Clemson: The Raiders loved this guy in the offseason camps. Gruden’s offense is built for a player like Renfrow; I wouldn’t be surprised if he becomes a top-10 slot receiver someday. It might be difficult for him to make a big impact as a rookie.

Quinton Bell, DE, Prairie View: He is an athletic freak and a lottery ticket for the Raiders. Probably headed to the practice squad.

Undrafted free agents to watch: Receiver Keelan Doss (UC Davis), linebacker Te’von Coney (Notre Dame), and fullback Alec Ingold (Wisconsin). All three of these players have a chance to make the 53-man roster.