Del Rio squelched the surgery rumors put out by an Internet blog report which said Jones-Drew had the surgery.
"No," he said. "No, has not happened, is not necessary. He's working, rehabbing, strengthening and gearing up for the regular season."
Because of the team's short week, they beat Tampa Saturday, Del Rio will give Jones-Drew, who has a sometimes balky left knee, more rest and he won't play against Atlanta on Thursday.
Jones-Drew, who had 10 carries in the preseason last season, has only six carries for minus-two yards this preseason, but Del Rio said he'll worry about the running back being in game shape later.