He’s becoming a veteran who’s never set foot on a professional court. The third pick of the 2014 NBA Draft will miss his second straight season after having follow-up surgery on his slow-healing right foot. The Philadelphia 76ers are being extra cautious with their prized young center. Last year, they sidelined the 7-foot Cameroon native beyond his five- to eight-month recovery time and say they plan to do so again. But the team has a backup plan: Their third pick this year nabbed hot Duke prospect Jahlil Okafor.