Teenage goalkeeper Jack Porter made his Arsenal debut on Wednesday night. Mikel Arteta called upon Hale End academy shot-stopper Jack Porter for Arsenal’s EFL Cup clash with Bolton Wanderers at the Emirates Stadium. Porter made Arsenal history with this appearance, as he became the North London club’s youngest ever goalkeeper debutant. The 16-year-old’s services were required due to the recent injury sustained by David Raya. Arteta is keen to treat the Spain international’s knock with caution, and was unwilling to take an unnecessary risk by playing the former Brentford man in this cup fixture…