The Indianapolis Colts (3-1) return to Lucas Oil Stadium for NFL Week 5 action against the Las Vegas Raiders (1-3). The Colts are coming off their first loss of the season, 27-20 to the Los Angeles Rams . The Raiders have struggled since winning their opener, falling 25-24 to the Chicago Bears in Week 4 as their last-second field goal try was blocked.

Here are the keys to the Week 5 matchup.

Colts vs. Raiders: Keys to the Week 5 matchup

Despite losing their third straight game, the Raiders made notable improvements in Week 4. They kept quarterback Geno Smith clean after allowing 12 sacks over the first three games. Las Vegas rushed for 240 yards after failing to reach 100 in any of the first three games.

Red zone possessions should be interesting: Las Vegas is No. 2

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