Mets vs. Dodgers sparks MTA vs. Metro LA Twitter battle

Of this much, we are certain: the New York Mets will play the Los Angeles Dodgers in the first round of the National League playoffs starting on Friday, Oct. 9.

Which team has the home field advantage still is to be determined, but that hasn't stopped the two cities' public transit entities from engaging in a Twitter battle.

Have a look at the back-and-forth between the MTA and Metro Los Angeles:

Hey @MTA please tidy up the 7 train, @Dodgers blue is coming to town. #lolmets @Mets

-- Metro (@metrolosangeles) September 30, 2015

Don't worry, @MetroLosAngeles - we sweep our subway just like the @Mets will sweep the @Dodgers

-- MTA (@MTA) September 30, 2015

A friendly wager, @MTA? Perhaps your famous New York pizza. #Dodgers #LolMets pic.twitter.com/5g1vpMBuZF

-- Metro (@metrolosangeles) September 30, 2015

.@metrolosangeles Happy to wager on who wins the series. Care to wager on who gets more fans to the ballpark?

-- MTA (@MTA) September 30, 2015