APDuke coach Mike Krzyzewski reacts during a basketball game in Durham, N.C. (Gerry Broome)DURHAM, North Carolina (WTVD) -- Earlier this week Coach Mike Krzyzewski said in a recorded video message that he would have to undergo knee surgery.On Sunday, the Duke Basketball team tweeted that surgery had gone smoothly.[Ads /]READ MORE: DUKE'S COACH K TO HAVE KNEE REPLACED; TEAM TRIP CANCELEDThe tweet also said that Coach K might be walking very soon![Ads /] Report a correction or typo