LEEDS, England, Feb 28 : Antoine Semenyo may be just weeks into his Manchester City career, but the forward says he can already feel the winners of six of the last eight Premier League crowns switching into title-winning mentality as the run-in tightens.  The 26‑year‑old was the difference on Saturday, scoring the lone goal in a 1-0 win at Leeds United that pulled City within two points of leaders Arsenal after 28 games for both teams. The Gunners host sixth-placed Chelsea on Sunday. Pep Guardiola’s side have made a habit of tightening the screws come spring, stacking unbeaten streaks and grinding out narrow wins.  “Definitely seeing it, it starts from training every day – little habits, passing, possession, just making sure that attention to detail, everyone’s focused and not lacking,” said Semenyo.  “When you do that in training, it follows into games, and everyone just wants to win. Everyone is just major focused, and that shift in mentality is so crazy that just little things and making sure that we’re in tip-top shape.” City’s league-leading …