Now Chicago has gotten a taste of the review system on two consecutive days.
On Monday in Colorado, umpires confirmed that Rockies shortstop Troy Tulowitzki's towering drive down the left-field line was foul. The ruling kept the score 4-0, but Tulowitzki drove in two with a single and the Cubs lost, 11-5.
Tuesday's replay review was much more significant.
The Phillies led, 3-2, with two outs in the top of the ninth when Carlos Ruiz hit a long fly ball into the left-field corner off Angel Guzman. The ball appeared to curl in front of the foul pole and land to the left of it and short of the outfield wall.
"It was clearly a foul ball," Guzman said. "It wasn't even a foul-ball home run."
Nonetheless, third-base umpire Dale Scott called the ball fair, giving the Phillies a temporary two-run lead.
Third baseman Jake Fox said he had the same view Scott did, but believed there was no way for the ball to curve behind the pole and around to the fans sitting in foul territory who caught it. Fox and shortstop Ryan Theriot asked Scott to take another look.
Scott convened with his crew, which then left the field to look at the replay. After a two-minute delay, they returned and reversed the call.
"I think it's a good rule, because that would have been a very unfortunate turn of events if that had been ruled a home run," Fox said. "With that being ruled a foul ball, it gave us a chance to win the game."
After Guzman got Ruiz to ground out, the Cubs tied the score in the bottom of the ninth. Although the Phillies won, 4-3, on an undisputed home run by Ben Francisco in the 12th, the replay rule at least gave the Cubs a fair opportunity for a victory.
"It's interesting to be a part of," reliever Kevin Gregg said. "I think it's a step in the right direction to get the game called the right way."
Andrew Simon is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.