BOSTON – Three games at Fenway Park. Three beatdowns. The Astros watched a 2-0 first-inning lead quickly wash away Saturday, falling 8-4 to the Red Sox. Boston has won the initial three contests of a four-game series by a combined score of 22-9. The Red Sox go for a sweep Sunday. Big bats: Astros shortstop Marwin Gonzalez continued his run as the team’s biggest April surprise. Gonzalez went 2-for-4 with a double. He’s hitting .321 with a .921 OPS. Starters: Righthander Brad Peacock joined Philip Humber and Erik Bedard as Astros starters battered by Boston. Peacock lasted just 3 1/3 innings, giving up six hits, five runs and five walks. [.]