It is getting to the point in the season when a clutch waiver wire add could spark your team to the playoffs and beyond in your fantasy league. A number of players have come out of nowhere to light up the league in any given week.
Some have staying power (remember Ryan Grant from 2007???), while others are merely one-week wonders who will return to the realm of the unknown. Here are the 10 biggest out-of-nowhere performances, as well as an outlook on who is a legitimate add and who should be ignored.