UNC's Ryan Houston injured

UNC senior tailback Ryan Houston fractured his scapula (shoulder blade) during the Tar Heels' football scrimmage on Saturday, the school announced on Wednesday. He will undergo surgery Thursday afternoon at UNC Hospitals. Houston's status will be updated at that time.

Many of you have wondered what's holding the Tar Heels back from being a Coastal Division contender. Well, experienced depth at tailback is one issue. Houston's health is critical to the offensive success this season, and it remains a question as to whether he can shoulder the load this year.

He showed a lot of potential in 2009, when he was the team's leading rusher with 713 yards. Hopefully this isn't serious -- you never want to see players get hurt -- but it's an unfortunate reminder of just how much of a question mark the tailback situation is.