Mark Duffy of Sheffield United during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Jamal Blackman of Sheffield United during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

John Lundstram of Sheffield United during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Pawel Wszolek of QPR during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Josh Scowen of QPR during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Alex Smithies of QPR during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Alex Smithies of QPR during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Luke Freeman of QPR during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.

Paul Smyth of QPR during the Sky Bet Championship match between Sheffield United and Queens Park Rangers at Bramall Lane on February 20, 2018 in Sheffield, England.