Detroit Lions fans are all too familiar with how the injury bug can derail a season. One of those players whose absence hurt the Lions in a big way was star defensive lineman Alim McNeill. Lions defensive coordinator Kelvin Sheppard was impressed with McNeill's first session, saying, "I saw all I needed to see. Getting reinforcements is obviously helpful, and getting a game-changer like McNeill in the mix will obviously help the Lions' defense. More Detroit Lions news and rumors: