This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

KANSAS CITY, Mo. — GEHA Field at Arrowhead Stadium opened its doors to a full capacity crowd of Kansas City Chiefs fans for the first time since winning Super Bowl LIV in 2019.

The Chiefs welcomed the Cleveland Browns, who they beat in the divisional round of the playoffs last season en route to their second consecutive Super Bowl appearance.

Kansas City came back from a double-digit deficit to beat Cleveland 33-29 and start the season 1-0, continuing their dominance in September during the Patrick Mahomes era.

“Yeah, listen, it was loud down there—very, very loud. You guys were there, so you know. It was that kind of atmosphere,” head coach Andy Reid said. “I think you watched all the college games and you felt that. Arrowhead is loud anyways—how you load this thing up and you say you can’t come here for a year you know, and you just open the gates.”

“I mean it was insane, probably one of the best crowds I’ve seen since I’ve been here,” Mahomes said. “I think that was a momentum swing in the game that kind of got in our favor.”

KANSAS CITY, MISSOURI – SEPTEMBER 12: Quarterback Patrick Mahomes #15 of the Kansas City Chiefs exits the tunnel during player introductions prior to the game against the Cleveland Browns at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Baker Mayfield #6 of the Cleveland Browns looks on against the Kansas City Chiefs during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Chris Jones #95 of the Kansas City Chiefs reacts during the first half against the Cleveland Browns at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs directs the offense against the Cleveland Browns during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Baker Mayfield #6 of the Cleveland Browns carries the ball against the Kansas City Chiefs during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs reacts against the Cleveland Browns during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Baker Mayfield #6 of the Cleveland Browns looks to pass against the Kansas City Chiefs during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Head coach Kevin Stefanski of the Cleveland Browns looks on against the Kansas City Chiefs during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Nick Chubb #24 of the Cleveland Browns scores a touchdown during the first half against the Kansas City Chiefs at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: A cheerleader for the Kansas City Chiefs performs during the game against the Cleveland Browns at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs looks to pass against the Cleveland Browns during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Jadeveon Clowney #90 of the Cleveland Browns in action against the Kansas City Chiefs during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Baker Mayfield #6 of the Cleveland Browns reacts during the first half against the Kansas City Chiefs at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs reacts prior to the game against the Cleveland Browns at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Travis Kelce #87 of the Kansas City Chiefs is tackled against the Cleveland Browns during the first half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs scores a five yard touchdown during the second quarter against the Cleveland Browns at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs celebrates with Trey Smith #65 after throwing a touchdown pass during the fourth quarter at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Tyreek Hill #10 of the Kansas City Chiefs celebrates with Travis Kelce #87 after a touchdown during the fourth quarter at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Travis Kelce #87 of the Kansas City Chiefs dives into the endzone for a touchdown during the fourth quarter against the Cleveland Browns at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)
KANSAS CITY, MISSOURI – SEPTEMBER 12: Patrick Mahomes #15 of the Kansas City Chiefs reacts against the Cleveland Browns during the second half at Arrowhead Stadium on September 12, 2021 in Kansas City, Missouri. (Photo by Jamie Squire/Getty Images)