Sources: Miles headed to DL

Updated: June 29, 2009, 2:12 PM ET

The Cubs will put infielder Aaron Miles on the disabled list with a hyperextended elbow, league sources told's Bruce Levine on Sunday.

Bobby Scales, the 31-year-old rookie who has split time between the Cubs and the minor leagues this season, is a candidate to replace Miles on the roster, according to sources. Outfielder Sam Fuld, who is batting .286 with 20 steals for Triple-A Iowa, could also get the call.

The move will not be announced until before the game in Pittsburgh on Monday.