Raiders' players process 'surprise' of Khalil Mack trade
The Raiders-Bears trade for Khalil Mack changed the NFL - Sports Illustrated
Chicago Bears reach agreement to trade for Khalil Mack from Oakland Raiders - ESPN
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Bears give Khalil Mack record deal after trade with Raiders
Raiders' Khalil Mack traded: What was the price? Here's the reaction (jokes to tears) as Chicago Bears pull off blockbuster deal
Big game propels Raiders' Khalil Mack into NFL sack lead