Undrafted breakout star Martin leads Heat to NBA Finals with help from longtime friend J. Cole

Caleb Martin went undrafted but caught on with Miami's G League team before signing an NBA contract.
Martin is a key player for the Miami Heat in the NBA Finals after starring in the Eastern Conference finals.
Martin's rise came with the help of his friend, rapper J. Cole, who recommended him to a Heat assistant coach.
The Heat are known for developing overlooked players, and Martin is their latest success story.
Martin signed a three-year, $20 million contract last summer following his breakout with the Heat.