The Derby boss has been speaking about his side’s visit to Rotherham.
The midfielder is back for a second loan spell at Rotherham.
Nobody has made more saves than the Slovakian so far this season.
Ball joined Bradford on loan on Monday
The Millers boss met with the media on Tuesday afternoon.
The Millers were beaten 3-2 by Hull.
The Millers have been chasing Towell all summer.
Manning has joined the Millers on a season-long loan.
The striker made his comeback from injury on Tuesday