Domingo Santana hit a three-run homer for Milwaukee, and Ryan Braun had two hits and drove in a run. The Brewers took the last two games of the weekend series after dropping six in a row.
Walker came over in a trade with the New York Mets on Saturday. He started at third base in place of the banged-up Travis Shaw and went 2 for 4 with a run scored.
Brewers starter Matt Garza (6-6) allowed four runs, three earned, and five hits in 5 1/3 innings. He struck out two and walked five.
