Detroit Lions linebacker Travis Lewis has been suspended for the final four games of the regular season for violating the NFL's policy on performance-enhancing substances. The league announced the suspension Tuesday. The 25-year old Lewis is in his second season after being drafted in the 7th round in 2012. He has played 25 games for Detroit, withy no starts and his contributions have been mostly on special teams. Lewis is eligible to return after the Lions' regular season finale against the Minnesota Vikings. Lewis released a statement apologizing.