... baseball is also pushing hard for more use of technology. After the New York Yankees' suffered a serious blown call against the Detroit Tigers general manager Joe Girardi called for better utilisation of tech in the game. England, Tottenham Hotspur, Chelsea and Everton fans among many will have agreed with him at some point.
The whole world is talking about it, and if you haven't see it yet, here is your chance.
It's been a year of unparalleled success for British sportspeople, with tennis and gold majors won, the incredible Olympics, and being part of the astonishing Ryder Cup victory. But what have been the disappointments this year?
Declaration Of War is the aptly named horse that may be sent into battle by Aidan O'Brien against Frankel at Ascot this weekend.
The former French racing cyclist Christophe Bassons, who was told to leave the Tour de France and "go home" by disgraced champion Lance Armstrong after speaking out about doping, said he did not feel bitter towards the American.
One betting firm believe watching paint dry will be more exciting that tonight's big fight. Are they right?