Jose Mourinho has vowed not to over-rotate his lineup and risk throwing away Manchester United's FA Cup chances.
Fresh from comprehensively winning the first leg of their Europa League round-of-32 clash with St Etienne, United turn their attention to the only major trophy they have won since Sir Alex Ferguson's retirement.
Mourinho's side travel to Ewood Park looking to overcome Championship side Blackburn and reach the quarterfinals, although it would be tempting to rest players given a return leg in France and EFL Cup final against Southampton follows this week.
The United manager will make changes on Sunday, but promised to respect the FA Cup, having been burned in the fifth round against Newcastle 12 years ago.