Caleb Foster’s ‘surreal’ performance vs. St. John’s wills Duke back to Elite Eight

WASHINGTON — Exactly 20 days ago, when Caleb Foster was sobbing his eyes out on a golf cart in Cameron Indoor Stadium, painfully aware he’d just broken his right foot, he never could have imagined this. And yet, here he is. Or, more accurately, here Duke is: Still dancing, and advancing to its…