By Yaron Weitzman
FOX Sports NBA Writer
BOSTON — In the hours leading up to tipoff, as he jumped and jogged across the hardwood floor of TD Garden, Robert Williams III felt, well, not quite good, but better than he’d felt in weeks. “A little more loose” is how he would describe it later.
He’d been gifted three days between Games 2 and 3 and spent that respite nursing his balky left knee. Stretching. Icing. Stimulating. Napping — or,…