The Millers have made three signings so far.
The Millers are chasing Ryan Yates.
The Championship clash will be played on Sunday August 26.
Marek Rodak, Josh Emmanuel and Richie Towell were key players last season.
The Millers play two friendlies in Austria.
Price was released at the end of last season.
The Millers head out to Vienna on Sunday.
The 21-year-old has arrived on a season-long loan.
The players are back after just 37 days off this summer.