MLB Playoffs

After missing their chance to clinch a World Series berth on Wednesday, the Kansas City Royals return to Kauffman Stadium, where they have won their last three postseason games, with a chance to eliminate the Toronto Blue Jays in Game 6 of the American League Championship Series on Friday. 

For the Toronto Blue Jays, Game 6 of the American League Championship Series—set for Friday at 8:07 p.m. ET on Fox Sports 1—is a must-win. For the Kansas City Royals, it's a you-really-should-win.

Either way, to paraphrase a certain presidential candidate, it's going to be huge.

Not everyone who has taken part in the 2015 MLB postseason can be like the New York Mets' Daniel Murphy.

While the unassuming second baseman has been the biggest surprise of the playoffs, there's also been no lack of players and teams who have been downright disappointing.

Expectations were a big part of the equation in ranking the biggest underachievers of all thus far. After all, disappointment is all about unfulfilled potential. There was also room on the list for players and clubs who have failed in epic fashion. 

The New York Mets are waiting for their World Series opponent.  

Wasting no time on drama, the Mets swept the Chicago Cubs in a one-sided National League Championship Series, jumping out to an early 6-0 lead to capture Game 4 on Wednesday night. Now they'll sit back and scout their two possible American League adversaries.

As the New York Mets anxiously await their opponent in the 2015 World Series, manager Terry Collins has everything set up exactly as he wants with five days off to set up the pitching staff however he chooses. 

The Kansas City Royals are one win away from securing their second consecutive berth in the Fall Classic, going back to Kauffman Stadium with two chances to close out the Toronto Blue Jays starting on Friday. 

One league championship series down, one to go. The New York Mets completed their surprising sweep of the Chicago Cubs at Wrigley on Wednesday, as Lucas Duda drove in five runs and Daniel Murphy smashed a homer in the Amazins' 8-3 victory.

For the second consecutive season, the Kansas City Royals will have an opportunity to secure a spot in the World Series with one more victory over the Toronto Blue Jays. 

With their season on the line for the third time already this postseason, the Blue Jays got a tremendous start from Marco Estrada and a big sixth inning to force a sixth game at Kauffman Stadium in Kansas City, Missouri, on Friday. 

Both the National League and American League Championship Series have given us plenty of memorable moments to talk about for years and years to come. 

Many of those moments have been provided by some of the unlikeliest candidates. Over the next few slides, we'll rank a few of those surprise impact players. 

Surprises come in different shapes and sizes.

The numbers mean nothing, and yet they mean everything.

Nobody who knows anything would say that David Price can't pitch in the postseason, but by now just about everybody knows Price hasn't won in the postseason—not once, at least not as a starter.

Seven career starts. Seven losses.

On July 2, the New York Mets lost their seventh game in seven tries against the Chicago Cubs and saw their record drop to a mediocre 40-40. On Wednesday, Oct. 21, the New York Mets completed a National League Championship Series sweep of those same Chicago Cubs with an 8-3 victory and earned a spot in the World Series for the first time since 2000.

Talk about a turnaround.