49ers' Christian McCaffrey says calf injury is 'nothing bad' and he's 'all good' for NFC title game | CBS Sports Headlines 49ers' Christian McCaffrey says calf injury is 'nothing bad' and he's 'all good' for NFC title game McCaffrey said he was dealing with some discomfort in his calf ESN … Continue reading 49ers' Christian McCaffrey says calf injury is 'nothing bad' and he's 'all good' for NFC title game