NBA Hall of Famer Mitch Richmond has a very clear message for Michael Sam -- don't give up -- telling TMZ Sports that he hopes Sam does everything he can to keep his NFL dream alive.
Richmond was out in Calabasas when our camera guy asked the 6-time All-Star and Cowboys fan about Sam being cut from the 'Boys practice squad to make room for another player.
Check out the clip -- Richmond goes all Jim Valvano on us, delivering just the message that Sam probably needs to hear right now.
And just in case you need some extra motivation today, here's Jimmy V at his finest ...
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