Peguero will be on Boston's major league roster, Pete Abraham of the Boston Globe reports. The Rangers threw in the towel with Peguero after the 28-year-old fanned in 42.9 percent of his plate appearances in 30 games to begin the year, but the Red Sox will give him a look with Shane Victorino on the DL and Rusney Castillo dealing with a shoulder injury. Peguero does have impressive power (.229 ISO this season) and speed for someone who is 6-foot-5, but it remains to be seen how much he'll play with the Red Sox.