affeldt donated $20,000. much of that coming from the $100 he pledged for every strikeout he pitched during the season. now he s upping that to $250 per strikeout. he s also raising awareness by recruiting teammates and opponents. tapping st. louis cardinals outfielder, matt holliday. you have so many nationali nationalities represented here. some asian ballplayers, the latin guys. all these guys there is slavery in these countries. reporter: not for sale has built a medical clinic, safe house and dormitories for former child slaves in thailand. in peru, the group helped launch a surfing program for street kids. last season the giants won the world series. affeldt hopes the buzz surrounding his team will bring attention to a problem which many only rarely think about.