ground rules

Yankees Lose On Controversial Home Run Call
Yankees Lose On Controversial Home Run Call
Yankees Lose On Controversial Home Run Call
The New York Yankees lost to the Kansas City Royals 5-4 on Wednesday night. The one run difference was a Billy Butler HR that had to be reviewed, and ultimately upheld by the umpiring crew at Kauffman Stadium. So what exactly was so controversial about Butler's HR? What does this say about MLB replay?