U.S. Olympic Committee Board Chairman Larry Probst will step down at the end of the year and be replaced by board member Susanne Lyons, who until recently was the acting CEO, the USOC announced on Sept. 10.
Probst, 68, who became chairman in October 2008, recently oversaw the opening of the U.S. Center for SafeSport, an independent entity that aims to help the sports community to respond to incidents of abuse.