Onetime Mahomes mentor sees star potential in Giants QB Jaxson Dart

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Mike Kafka was a 30-year-old assistant coach when he helped prep Patrick Mahomes for his first career start late in the 2017 season.

On Sunday, he'll be on the headset with New York Giants rookie Jaxson Dart for his starting debut against the Los Angeles Chargers. Kafka has no qualms with putting Dart in the conversation with somebody like Mahomes because of t