SANTA CLARA, Calif. -- What should we make of the fact that Michael Crabtree was not spotted during the time media was present at the start of the San Francisco 49ers practice the past two days?Nothing at this point.Before practice Thursday, San Francisco offensive coordinator Greg Roman said Crabtree did not suffer a setback as he tries to return from a torn Achilles. In fact, Roman said Crabtree is "progressing nicely." Recovery time is part of Crabtree's program.