PATRICK MAHOMES has fired a stark warning to his Kansas City Chiefs teammates after their season-opening defeat.

The 2024 Super Bowl losers were toppled by the Los Angeles Chargers 27-21 in Sao Paulo, Brazil on Friday night.

The defeat was the worst possible way for the Chiefs to start the 2025 season.

They had been hoping to lay down an early marker and reclaim the Super Bowl title in February.

However, against the Chargers, they lacked energy and were well beaten.

Mahomes , 29, has spoken since the loss and warned his teammates that they need to put in much more energy if they want a successful season.

He said: "They came out with more energy than we did, their defense than our offense.

"I thought we had energy at practice yesterday and all throughout the week.

"But if you

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