Rotherham have completed their eleventh summer signing with the capture of Wales Under-19 goalkeeper Steve Cann.
The 19-year-old was released by Derby at the end of last season and has impressed Millers boss Mark Robins whilst on trial at Millmoor.
Cann told the club's website: "I'm really excited about joining Rotherham.
"After being at Derby for a year I'm now trying to push for the first team here. When I first came here, it wasn't what I expected it to be."