From the NYTimes:

Meanwhile, back at the stadium, the Olympic flag was carried along the track by eight humanitarians, including Ban Ki-moon, the United Nations secretary general, and Leymah Gbowee, who shared the 2011 Nobel Peace Prize. Once they made a half-circuit of the stadium, they met a frail-looking Muhammad Ali, who did not move despite roars of support and visible instruction from Ali’s wife to grab the flag or wave.

Leymah Gbowee is in the front row, third from left. Web photo courtesy of zimbio.com