KANSAS CITY CHIEFS head coach Andy Reid addressed Travis Kelce's explosive outburst against the Philadelphia Eagles.

The Chiefs lost 20-17 to the Eagles on Sunday at Arrowhead, marking a poor start to the season that has seen them losing both of their opening games following defeat to the Los Angeles Chargers.

And that appears to have led to increased frustration within Kansas City 's ranks.

Kelce , 35, was seen slamming his helmet down on the sidelines in a stunning television moment.

The tight end was airing out his grievances to his team-mates at the end of the second quarter.

The three-time Super Bowl champion was clearly animated while the Chiefs were up just 10-7 and appeared to scream, "I'm sick of this s***!"

Reid, 67, was asked about the NFL star's fury in Missouri

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