Take heart, Steve Mason, for you are not alone.
The Philadelphia Flyers goalie allowed an embarrassing and perhaps series-defining goal off Jason Chimera's stick from 100 feet away, one that ended up being the Game 2 winner for the Washington Capitals.
Related: Mason takes responsibility for gaffe: 'I messed up'
Mason isn't the first to make such a mistake, and hopefully, for entertainment purposes, won't be the last.
Owen Nolan on Roman Turek
In Game 7 of an opening-round series back in 2000, Owen Nolan beat Roman Turek with a late first-period slap shot from center ice that gave the San Jose Sharks a 2-0 lead over the St. Louis Blues.
It proved to be the game-winning goal, sending San Jose to the conference semifinals.
Sandis Ozolinsh on Martin Brodeur
This one came from a bit closer in, but was scored in the 2003 Stanley Cup Final and on a mistake made by arguably the greatest goaltender of all time.
While Sandis Ozolinsh managed to make Martin Brodeur look foolish, the New Jersey Devils got the last laugh by raising the Cup.
Derek Morris on Jonathan Quick
The (then Phoenix) Coyotes made a surprise appearance in the Western Conference Final in 2012, where Derek Morris rifled a slap shot that eluded Jonathan Quick, who's generally considered one of the best playoff performers over the past several seasons.
Nicklas Lidstrom on Dan Cloutier
Vancouver built up a 2-0 series lead as the eighth seed facing off against the Presidents' Trophy winners from Detroit in 2002. With the score tied late in the second period of Game 3, Nicklas Lidstrom beat Dan Cloutier from center ice.
Detroit went on to win that contest and the next three to take the series, making this goal the definition of a turning point.
