The Red Sox have struck a deal to acquire fleet-footed outfielder Rajai Davis from the Athletics, the teams announced on Tuesday night. Minor league outfielder Rafael Rincones is going back to the A’s in exchange, and Boston has designated first baseman/outfielder Steve Selsky to clear a 40-man roster spot. Davis had previously ranked eighth on MLBTR’s most recent list of the top August trade candidates. The 36-year-old Davis had a slow first half to the season but has been on fire since the All-Star break, hitting .303/.361/.487 with three homers and 11 steals (in 13 attempts). Overall, he’s stolen 26 bases in 32 attempts. Davis will give Boston a huge boost in terms of speed in the season’s final month as well as in the postseason — both times when clubs are more likely to carry pinch-running specialists. Of course, Davis’ second-half production and his respectable .255/.319/.396 slash against left-handed pitching illustrate that he brings far more to the table than just his wheels. He’ll also give the Sox a veteran outfield option capable of playing all three spots while Jackie Bradley sits out for the next week-plus due to a sprained thumb.