The 19-year-old has made six appearances for the Gunners this season and is highly thought of by Arsene Wenger.
Reine-Adelaide’s last appearance for the first team came against Sutton United in February.
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Arsenal midfielder Jeff Reine-Adelaide
The French teenager may have picked up the knock in last week’s 5-2 win for the under-23s against Reading.
He wrote on Instagram: “Injured until the end of the season.
A post shared by Jeff Reine-Adélaïde (@jeff.reineadelaide) on Apr 18, 2017 at 11:24am PDT
“I will come back stronger next season.
Reine-Adelaide joins Santi Cazorla in being ruled out for the season.
While reports suggest Jack Wilshere, who is on loan at Bournemouth, is also set to miss the run-in after fracturing his leg.
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