It is a three-team scrap, at the moment, in the American League East. Boston clings to a 1-game lead over the New York Yankees with Tampa Bay hanging 2.5 back. The Rays are visiting Yankee Stadium for a four-game series that starts tonight. Boston hosts surging Kansas City, an AL Central and wild card contender, for three starting on Friday. It’s not a good time to be in a slump, but both Corey Dickerson of the Rays and Mitch Moreland of the Red Sox are in one. Former Meridian Community College star Dickerson, a first-time All-Star this year, is batting .209 with one homer and four RBIs over his last 23 games. His average has plunged to .303. Yankee Stadium is a great hitter’s park for lefties, and Dickerson is batting .343 with three bombs against Yankees pitching this season. So … a breakout might be coming. The Rays would love to see it. Moreland, the ex-Mississippi State standout, is hitting .124 without a homer in his last 24 games and went 2-for-17 on the club’s recent road trip. His average is down to .239, and he’s been dropped in the BoSox’s order. He suffered a broken toe in mid-June but played through it and says it’s fine now. If there is a positive for Moreland entering the weekend, he is a better hitter at Fenway Park: .253 with six of his 12 homers and a .341 on-base percentage. He doesn’t have a hit in seven at-bats against Royals pitchers this year, so … perhaps he is due. The Red Sox surely hope that’s true.