RIYADH, KINGDOM OF SAUDI ARABIA -- At the age of six, Lucky Seven Stable and Sharaf Mohamad Alhairi's Rattle N Roll (Connect) is at the peak of his powers. The same can be said for his veteran trainer Ken McPeek, who is just this side of a series of achievements that anyone who does what he does for a living will have a hard time replicating anytime in the foreseeable future. For equine and human alike, Saturday's G1 Saudi Cup at King Abdulaziz Racecourse is a potential watershed moment. "It's...