The Eagles earned a gritty 20-17 victory Sunday at Arrowhead Stadium, one of the loudest venues in football, handing the Kansas City Chiefs their third straight loss dating to February’s Super Bowl.

Here are five things we learned about the Birds:

1. Drew Mukuba is for real

Rookie safety Andrew Mukuba, who came out of college with a reputation of always being around the ball, seized a pivotal fourth-quarter interception at the goal line on a pass that Chiefs tight end Travis Kelce couldn’t handle. He returned it 41 yards to set up an Eagles touchdown drive, flipping momentum and turning a 13-10 advantage into a 10-point margin.

He also had an early half-sack (combining with recently acquired edge rusher Za’Darius Smith), six tackles and a pass deflection.

Mukuba, drafted in the second

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