The filth and stench of the city was overwhelming. Little boys ran naked through the alleys. A slum-dwelling mother bathed her child under a small, open-air faucet. A grown man stooped over to brush his teeth with his finger, sand and street water.

These were just a few of the shocking images NBA star Kyle Korver witnessed during a trip to Calcutta, India in July 2008. Korver’s visit was a personally financed stopover that preceded his arrival in New Delhi with the NBA’s Basketball Without Borders program…