Oscar Colás spent a portion of Saturday afternoon at Target Field with Chicago White Sox major-league field coordinator Mike Tosar. Secondary leads were the focus. “I was working on how to take off,” Colás said through an interpreter before the game against the Minnesota Twins. “I’m having a little bit of difficulty with my back leg when I’m going to take off.” Colás continues to learn, adapt and apply at the plate, on the bases and in right field since the Sox recalled him from Triple-A Charlotte on July 4.