The pads haven't even come on yet during training camp, and the San Francisco 49ers are already dealing with notable injuries. As bad as those may be, injuries ultimately open up the door for others to take advantage of the increased opportunity. Such is the case for rookie running back Kaelon Black, an embattled third-round pick whom many NFL Draft pundits felt was a massive overreach last April. The rookie might've just been gifted his best chance to take the lead, though, even if comes via the unfortunate injury pathway. Later in the week, subsequent reports indicated James suffered broken ribs during practice and will miss an extended period of time.