The following are plays from the 2008 season that would have benefitted from instant replay:
May 18 -- Mets vs. Yankees
Carlos Delgado's fly ball down the left-field line at Yankee Stadium was initially ruled a three-run home run by third-base umpire Mike Reilly. Home-plate umpire Bob Davidson overruled Reilly and called it foul after Derek Jeter argued. Replays revealed that the ball actually left a mark at the base of the foul pole. Jerry Manuel, then the Mets' bench coach, was ejected for arguing the call. After the game, Davidson admitted he had erred in overturning the original call. "Bolts and nuts, I [expletive] up," Davidson said. "You've just got to move on. No one feels worse about it than I do."
Impact: The call did not impact the result of the game, as the Mets won 11-2. However, it did take a home run away from Delgado in his pursuit of 500.
May 19 -- Cubs vs. Astros
Geovany Soto's fourth-inning blast bounced just to the right of the yellow line on the wall in left-center field, meaning that it should have been ruled an automatic home run. However, the ball was ruled in play and Astros center fielder Michael Bourn chased it down. Soto still easily managed to leg out an inside-the-park home run.
Impact: None. Except Soto could have saved some energy by trotting around the bases. However, Soto can boast the first inside-the-park homer by a Cubs catcher since Cal Neeman in 1959.
May 21 -- Orioles vs. Yankees
Alex Rodriguez thought he'd hit his second home run of the game in the sixth inning at Camden Yards. Replays showed the ball cleared the outfield fence, but it was incorrectly ruled an RBI double, leaving A-Rod flipping his helmet on second base. After the game, crew chief Tim Welke admitted the call was blown upon seeing a replay.
Impact: The call did not impact the result of the game, as the Yankees won 8-0. However, as A-Rod continues to attack the all-time home run record, it was one that got away.
May 23 -- Rangers vs. Indians
Indians outfielder Ben Francisco's drive hit a railing above the yellow line on the left-field wall at Progressive Field. Replays later confirmed this, meaning it should have been ruled a three-run home run. However, umpires ruled that it hit the top of the wall, giving Francisco an RBI double.
Impact: The double cut the Rangers' lead to 12-7, instead of 12-9 had it been a home run. Both Francisco and Travis Hafner were stranded on base. The Indians wound up losing 12-9. It marked the team's seventh straight loss.
June 4 -- Rays vs. Red Sox
Dustin Pedroia's first-inning opposite-field shot was ruled foul by first-base umpire Jeff Kellogg. Replays showed the ball went into the stands on the fair side of Fenway Park's Pesky Pole.
Impact: Instead of a home run and 1-0 lead, Pedroia walked and the Red Sox did not get on the board until the third inning. The Red Sox still went on to win the game 5-1, taking a half-game lead in the AL East.
Aug. 5 -- Marlins vs. Phillies
Shane Victorino's seventh-inning blast down the left-field line was ruled a two-run home run. Replays showed it sliced foul to the left of the pole, and after the game third-base umpire Dale Scott confirmed the call had been blown. Ironically, this marked the first game that the MLB began testing replay equipment at Citizens Bank Park -- though the testing was only for future use.
Impact: Apart from costing the Marlins a potential shutout, the blown call had little impact, as the Marlins won 8-2.
Aug. 22 -- Marlins vs. Diamondbacks
Josh Willingham's eighth-inning drive to left field hit off a railing above the wall at Chase Field. The ball deflected off the top of the wall and fell back into the field of play. Willingham was credited with a triple, though replays indicated it should have been a home run.
Impact: The home run would have tied the game at 4-4. Instead, the game was tied two batters later on Wes Helms' sacrifice fly. Later in the inning, Cody Ross put the Marlins ahead for good with a solo home run.
Jeremy Lundblad is a researcher for ESPN.