By Jacob Leeks Mikel Arteta has insisted that David Raya does things people “don’t even see” as he again threw his backing behind the goalkeeper. Raya has endured a mixed first season at Arsenal after a summer move from Brentford that saw him displace No.1 Aaron Ramsdale. But the Spaniard has been consistently backed by boss Arteta and is now showing signs of finding his feet. The Gunners keeper has conceded just two goals in his last four games, with Arsenal winning all of them. That run started with a 5-0 win over Crystal Palace, with Raya starting the move that led to Leandro Trossard’s goa…