Diamondbacks-Reds free livestream: How to watch MLB games online, TV, schedule

Fans can watch the game for free by using the free trials offered by DirecTV Stream and Fubo TV. If both of those options have been exhausted, then fans can get an affordable Sling subscription that has a first month discount. Tonight's matchup Between the Reds and the Diamondbacks is the second game in their three game series, as the Diamondbacks won 6-2 in the series opener yesterday. After the win, the Diamondbacks progressed their record to 16-20 this season.