If you want to see NBA executives scrambling for their Sharpies and hastily revising their internal mock drafts? More sleep-deprived than usual? With the annual selection party less than a week away?

Mention Joel Embiid. The Kansas center, who was projected as the No.1 overall pick before undergoing surgery Friday to repair a fractured right foot, is turning the lottery process into a stretch-run medical free-for-all.

Every team rewarded for a lousy season with a prized lottery ticket – and that includes the Kings – should be absolutely terrified. First the stress fracture in his back, now the broken navicular bone in his foot. In fact, if Embiid is still available when Pete D’Alessandro prepares to reveal his pick at No. 8, the second-year general manager should put his head down on his desk, meditate for the allotted five minutes and resist temptation. Just say no and move on. The Kings need more players, not more medical bills.

NBA history has been brutal to big men who suffer serious knee, ankle or foot injuries, and the list of limping 7-footers seems to be increasing, not shrinking.

Repeated fractures of the navicular bone limited Bill Walton’s effectiveness and repeatedly interrupted what should have been a brilliant, once-in-a-lifetime career. Yao Ming struggled to carry China’s flag in the Beijing Olympics and retired soon afterward for similar reasons. Zydrunas Ilgauskas became the Cleveland Cavaliers’ all-time leader in gamesplayed, but early in his career, he broke the navicular bones in both feet and played a total of five games over two seasons; he eventually retired because of recurring discomfort.

The more recent history is perhaps most troubling: Brooklyn center Brook Lopez has twice broken his right foot and missed extended time. Phoenix rookie Alex Len, the first center drafted a year ago (No. 5), averaged 8.6 minutes in 42 games after returning from ankle injuries. Philadelphia center Nerlens Noel, the second center selected last year at No. 6, sat out the season after undergoing surgery to repair a torn ACL.