I'm the Ray Rice of my crew, You know my block in the front
Give me that thang and I run it, it ain't no option to punt

from Los – Money Loud Lyrics on Rap Genius

Meaning

Ray Rice is the runner back for the Baltimore Ravens. Known for his speed, he’s great with touchdowns(ranked 3rd of all time for touchdowns) and he really doesn’t punt, or kick the ball. Los says he’s as big and bad than most of the others and will take them out.
This also refers to him being from Baltimore, since Los was also born there as well

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