From JMV of ESPN 1070 in Indianapolis via Twitter:
"Been told by multi sources that QB P Manning needs a 2nd neck procedure. Will remain out indefinitely.Called #colts and waiting on response."
Later reports are saying maybe not, but this is just more evidence of the slow recovery of the all-world quarterback. Either way, it looks more and more likely that Mario and crew are going to someone else to use as a tackling dummy on September 11th (and maybe December 22nd as well, depending).