Tawa went 2-for-3 with a double and a run scored in Saturday's 5-3 loss to the Nationals.
Tawa has delivered two-hit performances in Arizona's first two games in Washington and will take a five-game hitting streak into the series finale. He'll start in center field and bat ninth Sunday in what will mark his seventh consecutive start. Tawa should have a fairly firm grasp on an everyday role while he's producing at the plate, as three key outfielders (Lourdes Gurriel, Jordan Lawlar and Tommy Troy) are all on the injured list.