Johnson was hitting .275 with two home runs, 28 RBI and 12 stolen bases in 65 games at Triple-A Charlotte this season.
Johnson, a 6-foot, 190-pound left-handed batting second baseman, led the minor leagues with 84 stolen bases last season and MLB ranks him as the White Sox No. 4 prospect.
White Sox general manager Rick Hahn said Johnson did not want to be shut down, but the team thought he could use the time to heal the injury.
“We think he's made a lot of advancements in the last two seasons,” White Sox general manager Rick Hahn said to the Chicago Tribune. "I do feel the hamstring injury took away a little bit of the explosiveness of his speed."
Hahn said he expects to call up five to eight prospects before the end of the year. Those prospects could include pitcher Carlos Rodan, shortstop Tim Anderson or pitcher Francellis Montas.
- Scooby Axson