There have been rumblings that the Oakland Raiders would trade the former Defensive Player of the Year Khalil Mack for months now, but no one knew if or when it would actually happen. 

Well, the Raiders have finally pulled the trigger. 

Oakland has agreed to a deal that sends the superstar defensive end to the Chicago Bears. 

Oakland shopped Mack to the Bears at a hefty price tag of two first-round picks, a third-round pick, and a sixth-round pick from Chicago. Despite the haul, the Raiders lose their best defensive player and arguably the best defensive player in football in this deal, so only time will tell if they can turn the lottery selections into anything useful.

In terms of fantasy impact, Oakland goes from having a defense that probably wasn't going to be drafted in most leagues to a defense that definitely won't be drafted in most leagues.

The Bears defense takes a big leap forward, however, as this monster trade strengthens a front seven that includes two former Georgia standouts, Leonard Floyd and rookie linebacker Roquan Smith.

Last season, the Bears finished as a Top-10 fantasy defense in ESPN standard fantasy scoring. Although the Bears lost some veterans in Pernell McPhee, Mitch Unrein, Jerrell Freeman and Christian Jones, the addition of Mack propels them back into fantasy draft consideration. 

You might not want to make the Bears your top defense, but they've definitely got the talent to surprise people this year and sneak into fantasy consideration, especially on weeks they play bad offensive teams, much like in 2017.

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David Kaestle is not a FanDuel employee. In addition to providing DFS gameplay advice, David also participates in DFS contests on FanDuel using his personal account, username davekaestle. While the strategies and player selections recommended in his articles are his personal views, he may deploy different strategies and player selections when entering contests with his personal account. The views expressed in their articles are the author's alone and do not necessarily reflect the views of FanDuel.