CHICAGO (AP) – Marco Estrada pitched seven effective innings and doubled home a run Monday, helping the Milwaukee Brewers stop a five-game slide with a 7-4 victory over the Chicago Cubs in the first game of the season at Wrigley Field.  With a strong wind blowing out at the start of the game – a rare sight for an April date at the iconic neighborhood ballpark – Estrada allowed two runs and five hits while bouncing back from a lackluster season debut against Colorado. The right-hander also drove in Alex Gonzalez with a drive into the gap in right-center during Milwaukee’s two-run seventh.   Norichika Aoki collected three more hits and Ryan Braun had a successful return to the lineup as the Brewers won for the first time since opening day.