Kyler Murray has continually been doubted for his lack of size and arm strength.

"When I left [Texas] A&M [after my freshman] year, nobody thought I could throw," Murray said. "I'm short and I can't throw. It's a bad combination."

The Arizona Cardinals rookie quarterback is motivated by all the slights.

"What fuels me?" Murray said. "I would like to be the best to ever play the game."