Chael Sonnen's punching power

I was wondering, chael has pretty good wrestling skills but his ground and pound power is pathetic to say the least. Could he be a force if he improved that or is it too late for him to do this?

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Source: http://ninjashoes.net/forum/showthread.php?79408-Chael-Sonnen-s-punching-power&goto=newpost

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