Arsenal will be without Pierre-Emerick Aubameyang for three matches after Mikel Arteta confirmed their appeal to have the striker's red card overturned was unsuccessful.
Aubameyang was sent off midway through the second half of Arsenal's 1-1 draw with Crystal Palace on Saturday after lunging in on Max Meyer.
The Arsenal captain was initially booked for his challenge, but VAR directed referee Paul Tierney to change his decision to a straight red.
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Arsenal appealed the red card and were hopeful that the ban would be reduced but – in his news conference to preview Saturday's clash with Sheffield United – Gunners boss Arteta revealed Aubameyang will have to serve his suspension.