A month after trading away franchise star Khalil Mack to the Chicago Bears, the Oakland Raiders may be preparing to move out two more big-named players as the trade deadline draws closer.

According to Jay Glazer of Fox Sports, the struggling Raiders are looking to trade Pro Bowl wide receiver Amari Cooper and safety Karl Joseph - both former first-round picks.

The Raiders entered Week 6 with a 1-4 record, and head coach Jon Gruden has made it no secret that this is a rebuilding team. He acquired four draft picks from the Chicago Bears - including two first-rounders - in the Mack trade, but Oakland stands to get even more at the upcoming deadline.

RELATED: JON GRUDEN SAYS RAIDERS WILL TAKE A WHILE TO IMPROVE AFTER HE DESTROYED THE TEAM

Credit: Kyle Terada-USA TODAY Sports

Cooper is a two-time Pro Bowler and only 24 years of age, so his value will certainly be high on the trade market. The 2015 first-round pick has a pair of 1,000-yard seasons under his belt, as he and Derek Carr have formed one of the top WR-QB combos in the NFL. Through his first give games, Cooper has 22 catches for 280 yards and one touchdown.

The trade value might not be so high for Joseph, however, given the lack of production since Oakland took him with the 14th pick in 2016. Joseph has garnered a 63.5 grade from Pro Football Focus in 2018, which places in the "above average" quality. It's hard to envision Oakland getting more than a mid-round pick for his services, though.

Oakland handed Gruden a 10-year, $100 million to rebuild this team after a disappointing 2017 season. The former Super Bowl-winning head coach has maintained that it'll be a slow process, hence why he's willingly moving out young stars in order to secure a bundle of draft choices.

Raider fans may not like what Gruden is doing right now, but he's going to have plenty of chances to rebuild this team, given the long number of draft picks they're about to acquire. That's something for the fans to get excited about.

NEXT: JON GRUDEN DEFENDS KHALIL MACK TRADE