Sources

http://www.lexisnexis.com/hottopics/lnacademic/?verb=sf&sfi=AC01NBSimplSrch

http://m.mlb.com/news/article/59954638/

http://www.npr.org/sections/thetwo-way/2015/09/28/444133211/baseball-may-return-to-olympics-tokyo-organizers-also-call-for-surfing

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