A closer look at the Millers...
David Ball started his career with Manchester City as an academy player, going out on loan to Swindon during his time with the Citizens.
He joined Peterborough on 31st January 2011 and made over 40 appearances in his only year with the club, scoring nine goals. He also went out on loan to Rochdale during his stay with the Posh.
He joined Fleetwood Town on 23rd July 2012 and became a strong part of their starting XI playing over 200 games and scoring 49 goals, notably a 90th minute wonder strike that earned the Cod Army a draw against Blues last season.
On 6th November, he was nominated for the FIFA Puskas Award for his long range chip against Preston North End, in which the goal was nominated alongside Lionel Messi and Carlos Tevez.
He joined Paul Warne’s side this summer to boost the Millers’ attacking options up front.
Jamie Proctor became Rotherham’s second signing of this summer after leaving Bolton Wanderers.
He started his career with Preston in the youth academy and signed his first professional deal in 2009. He spent three-years with North End and made over 30 appearances, scoring four goals.
At the start of last season, Phil Parkinson took him to Bolton from Bradford where he made over 20 appearances but failed to hold a starting place and went out on loan to Carlisle before joining Rotherham for an undisclosed fee.
Semi Ajayi signed for the Millers on a permanent basis in March 2017 after a successful loan spell from Cardiff City.
The former Arsenal defender left the North London club in search of first team football back in 2015 and joined Cardiff City in June the same year. In his first season, he went out on loan to AFC Wimbledon and made five appearances during a two-month stay.
When he returned he went back out on loan in November and stayed with Crewe Alexandra until the end of the 2015/16 season, making 13 appearances.
In January of this year he joined Rotherham for the remainder of the season and proved to be a key part of the defence earning 17 starts and a permanent deal with the club.