Arsenal fans have been bemoaning the news that Takehiro Tomiyasu left the Emirates Stadium on crutches after getting injured on Thursday night.

The Lowdown: Tomiyasu injured

Tomiyasu was forced off injured in just the ninth minute of their 1-1 draw at home to Sporting in the UEFA Europa League second leg, as he was replaced by Ben White at right-back.

William Saliba was then forced off injured just 12 minutes later in what was an unlucky night for the Gunners injury-wise as well as the scoreline, as they crashed out of the competition on penalties.

Speaking to the media after the game, Mikel Arteta admitted that Tomiyasu's injury looked 'pretty serious' in a worrying assessment:

"Tomi looks pretty serious from what he said to me. Willy I don’t know, he had some discomfort."

Arsenal reporter for The Evening Standard Simon Collings has since shared an image on social media of Tomiyasu leaving the Emirates on crutches, which does not bode well for the Japan international.

The Latest: Arsenal fans react

Taking to Twitter, Gunners supporters were left fearing the worst for Tomiyasu after seeing him leave on crutches.

They said:

"This really isn't good. All the best, Tomi!" - @akarsenalnews

"Sell him Diaby 2.0" - @ed1_94

"This brother is made out of glass, speedy recovery" - @muideentemitop

"This hurts me more than getting knocked out of the EL" - @ElDanMan86

"Oh no" - @ifeyeee

"Feels worse then the loss tbh" - @ArseBrosRyan

"He's on crutches. Season over" - @theodox_dip

"Could be just a precaution but man that doesn't look good" - @Bibz_14

"Goodness me" - @Tobi2332_

"This might just hurt us" - @sihle_nzima

The Verdict: Frustrating

Tomiyasu's injury capped off a frustrating night for the North Londoners, as they crashed out of the Europa League via a penalty shootout.

The 24-year-old has had rotten luck with injuries in the past, notably a calf problem keeping him out for a large chunk of last season.

With Ben White very much establishing himself as the left-back for Arsenal as well this season.

Nonetheless, Gunners supporters will be waiting nervously to see the extent of his latest setback, and will be hoping that it is not too serious and that Tomiyasu can have a speedy recovery, with full attention now on Crystal Palace in the Premier League on Sunday afternoon.