Smith entered Thursday's game to play first base after Ildemaro Vargas (thigh) was removed in the fifth inning. Smith went 0-for-1 in a 3-2 win over the Dodgers.
The lefty-hitting Smith would not have been the first choice as a replacement with Dodgers southpaw Justin Wrobleski still on the mound, but Jose Fernandez was already in the game as the DH. The Diamondbacks typically limit Smith's exposure to left-handers. Vargas is day-to-day and is not expected to suit up Friday against Washington lefty Foster Griffin, but it's unlikely Smith will be in the starting lineup.