Alexis Sanchez has handed Arsene Wenger a worrying injury scare ahead of the clash with Norwich on Sunday. The Chilean has suffered a hamstring strain and will be assessed ahead of the trip to Carrow Road. With Aaron Ramsey and Alex Oxlade-Chamberlain fit again, the game could be the perfect chance to hand Sanchez a much-needed rest. But Arsene Wenger, who also revealed Joel Campbell is suffering with a calf problem, will wait to see how Sanchez recovers before making a decision on his availability ahead of Sunday. Speaking at his pre-match press conference on Thursday, Wenger said: 'I will have to assess that a bit later. Spontaneously it might not be the best moment to rest Alexis but I don’t know.Arsenal news: All the latest from the EmiratesArsene Wenger says Alexis Sanchez has suffered a hamstring strainArsenal boss will assess the Chilean ahead of trip to Norwich on SundayAaron Ramsey and Alex Oxlade-Chamberlain are both fighting fitBut Joel Campbell is another injury doubt and will need to be assessedWenger believes Leicester and Chelsea are in with a shot of winning titleRead: Arsenal midfielder Mathieu Flamini wants to prove worth to WengerSee the latest news update and analysis on Alexis Sanchez
_ had a little calf problem so I will assess all that on Friday, latest Saturday.