Wayne Rooney has returned to Manchester United after picking up a knee injury while on international duty with the England squad.

The 31-year-old apparently sat out during the training session ahead of England’s friendly clash with Spain at Wembley since the injury was thought to be minor but now interim manager, Gareth Southgate, has sent him home since he was planning on resting him anyway.

The FA’s official website says the following:

“Gareth Southgate already set to rest his captain for the visit of Spain to Wembley Stadium tomorrow night, Rooney has been allowed to return to his club for further assessment.”

This will come as a concern to Jose Mourinho whose team faces Arsenal in the next match. Although the Red Devils, and Jose, usually have a decent time against the Gunners, losing Rooney will be a blow, even though he’s not quite the player he used to be.

The striker has made 10 appearances so far this season, scoring just once and assisting four. However, having experience in the side is often beneficial, especially considering Rooney has scored a whopping 14 goals against Arsenal during his career.

Whether the knee injury causes Rooney to miss the Arsenal clash, we’ll have to see. For all we know, it could all just be a precaution to save him since the match against Spain is just a friendly.