Middlebrooks (b. 1988) played in the majors from 2012 to 2017 for the Red Sox, Padres, Brewers and Rangers. He had 262 hits, 43 home runs and a .228 batting average. He won the World Series in 2013 with the Red Sox.
I mailed to the signing on April 15 and got the cards back on June 18, for a 64-day TAT.