OAKLAND, Calif. (AP) — Mitch Moreland hit a grand slam, Jackie Bradley Jr. added a three-run homer and the streaking Boston Red Sox won their eighth in a row, beating the Athletics.

Boston kept up the best start in the franchise's 118-year history, improving to a major league-leading 17-2. They've won 17 of 18 since losing to Tampa Bay on opening day. Hundreds of Boston fans decked in red showed up at the Oakland Coliseum. They saw Moreland hit the fifth grand slam by the Red Sox this season — they didn't hit any last year.

Jed Lowrie matched his career high with four hits for Oakland. Lowrie, who doubled in a run in the first, leads the majors in hits (32) and RBIs (22). Kendall Graveman (0-4) took the loss for the A's, who had won four in a row.