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Preview: King of CrossFit

Name: Preview: King of CrossFit
Uploaded: 2015-09-10T11:48:02-0400
Duration: 35 s
Description: Sharyn Alfonsi profiles Greg Glassman, a brash, former gymnast who created the CrossFit workout, now the basis for a chain of gyms that has become the largest in history. Alfonsi's report will air on Sunday, September 13 at 7 p.m. ET/PT.

Sharyn Alfonsi profiles Greg Glassman, a brash, former gymnast who created the CrossFit workout, now the basis for a chain of gyms that has become the largest in history. Alfonsi's report will air on Sunday, September 13 at 7 p.m. ET/PT.