The Man United striker has been consistently under-performing for club and country in recent times, struggling to keep up with some of the other players on the side.
His recent performance against Manchester City was nothing special and he was unable to cause Claudio Bravo any problems from the No.10 role.
Here’s what fans on social media had to say about his exclusion from the squad.
No Rooney in the United squad for the Feyenoord game, think that's definitely some good news for most fans. Hope we see a 4-3-3 setup!
— Manchester United (@UTDWorldwide) September 14, 2016
So happy with no Rooney tomorrow❤️❤️❤️❤️❤️
— Corey (@_CoreyMann) September 14, 2016
Actually excited about the game now that Rooney isn't playing
— P (@ffsbaiIly) September 14, 2016
Rooney omitted from uniteds squad tomorrow. Fantastic news. Hope it's the beginning of the end for him. He's past it. #WishfulThinking
— Jamie Evans (@Evans707) September 14, 2016
Mourinho should drop Rooney too for Watford game
— Chura (@_swagi_) September 14, 2016
Man United kick-off their Europa League campaign on Thursday night and will face a tough Feyenoord side, who have scored 15 goals in their last five fixtures.
Leaving Rooney at home will give the Portuguese boss the perfect opportunity to switch his team around and provide some game-time to players who have seen little to no action so far.
It’ll be interesting to see who Mourinho decides to include in his starting XI with plenty of options available, hopes are we can see the likes of Memphis Depay, Morgan Schneiderlin and Marcus Rashford in action.