By Daniel Orme Ian Wright was left surprised that Gabriel Martinelli did not start for Arsenal against Crystal Palace after his two-goal cameo. The Brazilian was left on the bench against the Eagles on Saturday afternoon. It was just the third time Martinelli has been named as a substitute in the Premier League this term. Despite being benched, the 22-year-old still made an impact. He netted two practically identical goals in stoppage timeas the Gunners secured a 5-0 success. Speaking after Arsenal’s win, club legend Ian Wright gave his verdict and was shocked that Arteta did not start Martine…