Thoughts on rigged sports

I just wanted everyone's opinion. I for one, do not think sports are rigged. Too many people involved for it not to get leaked. However, my friend today after watching Michigan's implosion to Indiana tells me this is why he doesn't watch sports. It's all rigged. He then went on to mention the Sains/Vikings NFC championship game being rigged which did not sit well with me :)

So what do you think?