Khalil Mack went all the way to Europe for a chance to sack his former teammate Derek Carr as the NFL kicks off the first of four games in London.
Mack and the Bears (3-1) enter Week 5 tied for first in the NFC South while the Raiders (2-2) are tied for second in the AFC West. Mack faces the Raiders at Tottenham Hotspur Stadium 13 months after being traded to Chicago following a contract dispute.
Mack has 17 sacks and 10 forced fumbles since joining the Bears last season compared to a Raiders defense that has just 18 sacks and eight forced fumbles from the entire unit.
Next Sunday, NFC South rivals Carolina and Tampa Bay will also play at Tottenham. It's already their second meeting of the season after the Buccaneers beat the Panthers 20-14 on Thursday night in Week 2.
In Week 8, Bengals head coach Zac Taylor, the former quarterbacks coach for the Rams, will lead Cincinnati as it faces the NFC champions in Wembley Stadium.
And in Week 9, the London games conclude as Houston plays its first game in London in an AFC South matchup against Jacksonville, which will be playing its seventh annual "home" game in the city. This will also be the second matchup of the season for the teams. Houston won the first meeting 13-12 in Week 2 as the Jaguars failed on a late 2-point conversion attempt.