There has been plenty of speculation over when injured Arsenal star Jurrien Timber could return from injury, but Mikel Arteta has now killed any false hope over a quick recovery. Timber signed for Arsenal this summer and was outstanding in the Community Shield, but he ruptured his anterior cruciate ligament on his Premier League debut against Nottingham Forest, in what was a huge blow for him and his side. ACL injuries can take a year to fully recover from, but rumours had surfaced in recent weeks that he could be set to play some part in the second half of this season. However, Arteta has now…