Steelers' Mike McCarthy attempts to clear up confusion about Joey Porter Jr.'s injury

As the first day of training camp closed with unsettling news about a key player, Pittsburgh Steelers fans were left searching for answers about what happened to Joey Porter Jr. 

Knowing he would be asked, head coach Mike McCarthy attempted to clear up the confusion about why Porter was a late addition to the Active/Physically Unable to Perform list on Tuesday. 

Mike McCarthy confirms Joey Porter Jr. aggravated an injury at training camp

"He had something that flared up. That's why you do the workout. That's why you do the re-entry," McCarthy told reporters. 

McCarthy saying Porter "had something that flared up" helps to explain why he was the last player added to the Steelers' list of who will miss the start of training camp. Porter's inclusion did not occur until after both McCarthy and general manager Omar Khan spoke to kick off training camp and left fans speculating as to what happened since the other injuries were discussed at both media sessions. 

Mike McCarthy does not offer a timetable as to when Joey Porter Jr. will be cleared 

"We'll take it day by day" is all McCarthy was able to offer as far as a timeline, although that lends credence to the belief that Porter's injury is not considered anything serious.