The Boston Red Sox traded slugger Rafael Devers to the San Francisco Giants on Sunday in a deal that could shake up pennant races on both coasts. The Giants sent right-hander Jordan Hicks, lefty Kyle Harrison, outfield prospect James Tibbs III and minor league righty Jose Bello to the Red Sox for the 28-year-old designated hitter, who had bristled at his demotion from third base this year. The Giants were one game behind the first-place Los Angeles Dodgers heading into Sunday night's matchup between the NL West rivals.