Manchester United won for the first time this season as their new-look side tore apart a poor QPR at Old Trafford.
Record signing Angel Di Maria was particularly impressive and settled any early United nerves when his free-kick into the box crept into the far corner.
Ander Herrera drilled in soon after and Wayne Rooney’s sharp finish all but ended the contest before the break.
Juan Mata steered in Di Maria’s shot and loanee Radamel Falcao had a gentle debut as a 67th-minute substitute.