Arsenal were dealt a blow during their Premier League season opener against Nottingham Forest on Saturday when summer signing Jurrien Timber had to be hauled off through injury.
The Netherlands defender joined from Ajax earlier this summer and made a good early impression for the Gunners throughout pre-season and in their Community Shield triumph against Manchester City last week.
Timber started at left-back in Saturday's lunchtime kick-off against Nottingham Forest at the Emirates Stadium and was playing well as Arsenal cruised into a two-goal lead - Eddie Nketiah's deflected strike broke the deadlock before Bukayo Saka added a second with a stunner from 25 yards.
However, Timber was injured in first-half stoppage time in the act of trying to tackle Brennan Johnson, with the Welshman falling awkwardly onto Timber's knee.
He received treatment from physios as the half came to a close and was able to come out for the second half. However, just minutes after the restart, Timber innocuously pulled up with no one around him and had to be substituted, with Takehiro Tomiyasu replacing him.
Timber was able to put weight on the troubled leg though did have to be assisted by Arsenal medical staff as he made his way down the tunnel.
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This article was originally published on 90min as Arsenal summer signing suffers knee injury on Premier League debut.