Major League Baseball is exploring the possibility of expanding instantly replay in 2013.

MLB vice president Joe Torre recently said that the league would not change anything to its system this year. However, MLB is making moves to change things next season.

According to Jeff Passan of Yahoo Sports, new radar and camera based replay systems will be tested out at Yankee Stadium and Citi Field, starting next week. If the results of the new systems meet the approval of the league office, there's a good chance that replay will be expanded in 2013.

Instant replay is can be used during games, only in a limited manner. Umpires can use it to determine whether or not a play should result in a home run.

MLB is well behind other sports in the use of the technology. The NFL allows up to replay "challenges" during games and any play can be reviewed in the final two minutes of each half. All three-point attempts can be reviewed in the NBA, while other plays can be looked at in the final two minutes.

A few missed calls have become infamous over the past few years, forcing many to call for expanded replay. Most notably, Tigers pitchers Armando Galarraga lost a perfect game on a blown call with two outs in the ninth inning of a 2010 contest.

Commissioner Bud Selig announced in July that there would be some changes made next year.

 "We're now going to add it on trapped balls in the outfield and, as I call them, bullets down the right- and left-field line," Selig told ESPN Radio in New York.

Selig has given no indication that replay will be used on Safe-or-out calls on the bases.