Ange Postecoglou is closing in on his first Tottenham Hotspur signing this summer transfer window, according to a recent report. The North Londoners will be eager to go one better than their fifth-placed finish and return to the illustrious Champions League. Whilst there was evident progress in Postecoglou’s first season in charge, the onus is now to achieve a top-four finish. To do that, the Spurs boss will need to be backed in the window and with that said, it appears they’re close to signing a striker. READ MORE: Tottenham Hotspur now pushing to sign ‘devastating’ £25m-rated strikerTottenha…