By Sean Walsh Ilkay Gundogan has given his approval to a deal to rejoin Manchester City from Barcelona, according to several credible reports. The midfielder left City to join Barca upon the expiry of his contract in 2023, but is now closing in on an incredible return to the Etihad Stadium. The Athletic were first to report on Wednesday that Gundogan had green-lit a reunion with the Cityzens. He will sign a one-year deal with the option for a further 12 months. Gundogan enjoyed a successful seven-year stint with City between 2016 and 2023, winning 14 trophies and captaining them to their maide…