1. Kareem Hunt is alone in the record books
Rookie tailback Kareem Hunt has put up numbers in each of the first six games of his career unlike any other player in NFL history.
With 110 yards of total offense on Sunday (21 rushing and 89 receiving), Hunt became the first player in league history with 100-plus yards from scrimmage in each of his first six career games.
2. The Chiefs' offense caught fire in the fourth quarter
The Kansas City offense was struggling for much of the game when Hunt hauled in a 19-yard reception near the end of the third quarter.
Hunt caught the pass for a modest gain before stiff arming a Steelers' defender and scampering for big yardage.
It was Hunt's 26th play this season of at least 10 yards (he added another later) and the Chiefs offense seemed to catch fire right afterwards.
Though they came up short this week, Kansas City tallied 10 fourth quarter points, making it a league-leading 83 for the season.
3. Harrison Butker is on a roll
Rookie kicker Harrison Butker, who connected on both of his field goal attempts on Sunday, has now made 10 kicks in a row after missing his first career attempt.
Butker is one of just four kickers to ever make 10-plus field goals through his first three career games, and the only Chiefs' kicker to do so.
4. Marcus Peters makes plays
Cornerback Marcus Peters picked off Steelers' quarterback Ben Roethlisberger early in the second quarter for his second interception of the season.
It was Peters' league-leading 16th interception since 2015.
MOST INTERCEPTIONS, SINCE 2015
1. 16 Marcus Peters Kansas City
2. 13 Reggie Nelson Cincinnati, Oakland
3. 11 Kurt Coleman Carolina
4. 10 Micah Hyde Green Bay, Buffalo
5. The Chiefs scored on another big play
Kansas City notched its fifth offensive touchdown of 50-plus yards on Sunday when Smith found wide receiver De'Anthony Thomas for a 57-yard score.
That's the most 50-plus yard touchdowns from scrimmage for a team through six weeks since Cincinnati did so in 2012.
It was also the longest offensive play of Thomas' career, and his second straight game with a touchdown.
6. Dee Ford picked up a sack in his return to the field
Linebacker Dee Ford picked up his second sack of the season when he wrapped up Roethlisberger on Pittsburgh's opening drive.
Ford, who missed the past two games with a back injury, now has 17.5 sacks in his career. He's the eighth player in team history to tally that many sacks within the first four years of their career.