Sky Sports pundit Lee Hendrie believes David Raya has made huge improvements in an Arsenal shirt of late. The Spaniard has nailed down his place as Arsenal’s number-one goalkeeper after a slightly difficult start to life at the Emirates Stadium. There was plenty of talk surrounding Mikel Arteta’s decision to bring in David Raya after Aaron Ramsdale enjoyed a brilliant campaign last time out. It’s fair to say that Raya didn’t exactly hit the ground running after his switch from Brentford over the summer. The 27-year-old made some costly errors leading to goals and looked shaky on the ball durin…