MILWAUKEE (AP) -- The Los Angeles Dodgers say ace Clayton Kershaw received an epidural injection for his sore lower back and will be placed on the 15-day disabled list.

Manager Dave Roberts said before Thursday's game in Milwaukee that Kershaw received the epidural Wednesday and the team should know in a few days how he responded to it.

Roberts did not know how long Kershaw is expected to be out or who would take his scheduled start on Friday at home against Colorado.

The three-time NL Cy Young winner is 11-2 with a 1.79 ERA this season. He lost his last start on Sunday in Pittsburgh, giving up four runs and nine hits in six innings.

Kershaw has been on the disabled list only once in his nine-year career, in early 2014 with a shoulder strain.

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