Patriots tight end Rob Gronkowski should be OK to participate in the majority of offseason workout programs. Noted sports injury expert Will Carroll of SI.com said there’s reason to believe New England is looking at a four-to-six week recovery time for their big tight end, which should allow him to be ready by mid-April and the start of offseason minicamps. “He just had it cleaned out, from what I understand,” Carroll said. “I think that the fact they just went in and cleaned it out is a big positive. He’s got plenty of time to get back, even if it had been more serious.”