Donnie Baseball? More like Donnie Replay.

Utilizing baseball's expanded replay system, Manager Don Mattingly successfully overturned unfavorable calls on consecutive plays Tuesday night, playing a significant role in a six-run fourth-inning that vaulted the Dodgers to a 9-5 victory over the Arizona Diamondbacks at Chase Field.

Winners in four of their last five games, the Dodgers remain five games ahead of the second-place San Francisco Giants in the National League West.

If the crucial fourth inning validated the judgment of Dodgers video coordinator John Pratt, it also highlighted the ambiguity of Rule 7.13.

Implemented this season, the rule was designed to eliminate collisions at home plate between catchers and baserunners. In short, the rule forbids baserunners from taking indirect routes home to initiate contact with catchers; the catchers, in turn, can't block a baserunner's path to the plate unless they are in possession of the ball.

But there are some gray areas. Catchers, for example, are allowed to block the plate without the ball and make contact with a runner if the umpires determine they can't field a throw without doing so.