ANAHEIM (CBS/AP) — Mike Trout drove in a run with a double that originally was ruled a homer, Garrett Richards pitched seven strong innings and the Los Angeles Angels beat the Oakland Athletics 4-1 Monday night in the opener of a series between the top two teams in the AL West.

The Angels’ fourth straight victory reduced Oakland’s lead 3 ½ games, but it did not come without some controversy.

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Los Angeles manager Mike Scioscia was ejected by first base umpire Bob Davidson in the fifth inning for arguing after a call was overturned on replay: Trout’s towering drive to right field was touched by a fan at the top of the 18-foot wall. Originally ruled a two-run homer, Trout was awarded an RBI double.

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Richards (6-2) allowed a run and four hits, struck out four and walked none.

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