Muhammad Ali Sues -- My Old Kentucky Home ... SUCKS!

Muhammad Ali is ready for another big fight ... because he's suing a married couple that sold him a home that even Ty Pennington couldn't fix.

Ali and his wife, Yolanda, claim they bought the Louisville mansion back in 2006, and almost immediately discovered an array of ghastly problems, including a leaky roof, leaky chimney, mold, and structurally defective decking.

Ali and Yolanda say the unkindest cut of all is that the sellers knew the problems existed and then set out to deceive the greatest fighter of all time.