ARSENAL have confirmed Jurrien Timber is set to miss the entire season.
The club revealed he sustained an anterior cruciate ligament injury in his right knee.
Timber suffered the injury during his Premier League debut against Nottingham Forest on Saturday when he made a yellow card challenge on Brennan Johnson in first-half stoppage time.
Although he received extensive treatment on the pitch, he was passed fit to continue until his knee gave way just a couple of minutes after the half-time interval.
Arsenal ran out 2-1 winners, but the loss of Timber will be a massive blow to the rest of their season.