The 18-year-old has made a positive impression this season and scored his first senior goal against Swansea City in September.
He's got a great environment for his growth and the potential and talent is there, so let's see how he will developTomas Rosicky
Rosicky has been impressed with Gnabry’s progress and says working under Arsène Wenger will help him develop even further.
“He is a good dribbler and can take on you on in the one-on one-situations,” the Czech international told Arsenal.com. “That can be his strong point in the future and for an 18-year-old he is doing very well.
“I think he has a manager here who will develop him and who has a history of developing young players. Nothing better could happen to him than being offered a new contract here.
“He is a very talented boy; 18 years old and he still has plenty of things to learn and he will find no better place to learn than here. I think it works very well for both sides that he stays here.
“He's got a great environment for his growth and the potential and talent is there, so let's see how he will develop.”Copyright 2016 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source