John Stones’ winner against Wolves would have strengthened the belief within the Manchester City dressing room that they can go and win the Premier League again this season. After the contest, Stones revealed Manchester City have been working “super hard” on set-pieces. Manchester City earned the fruits of their labour in the 95th minute as Phil Foden’s delivery was as brilliant as his fellow countryman’s header. Jack Grealish hailed Stones after Manchester City beat Wolves alongside Stefan Ortega, Ruben Dias and Nathan Ake on his post-match Instagram post. Daniel Sturridge felt Stones’ goal a…