Orioles beat Diamondbacks, 4-2, behind splash hits, Cole Irvin’s left arm and a shuffled bullpen

Jordan Westburg kept his hands inside on a fastball, drove it to left-center field and slid into second for an RBI double to give the Orioles an early lead.

As if it was second nature, he looked toward Baltimore’s dugout at Camden Yards and hit the sprinkler — the club’s signature doubles celebration. His teammates on the top step leaned over the railing and squirted water from their mouths to complete the players’ half of the celebration. And with hose in hand as Mr. Splash on the chilly Friday night...