Crabtree sans boot on bike
SANTA CLARA — I just saw Michael Crabtree working vigorously on an exercise bike. He was bootless. Earlier in the day, Crabtree was seen smiling, and he told reporters he feels encouraged. Matt Maiocco reports Crabtree should be cleared to practice in two weeks, and although he won’t play in any of the preseason games for a third straight year, he should be ready to play in game 1 of…