But Iheanacho reacted first to bury the rebound from Samir Nasri’s shot to keep City flying high at the top of the table. Aguero had earlier limped off midway through the first half having failed to shake off the effects of a cynical trip by Palace skipper Scott Dann, and was replaced by £54million new boy Kevin De Bruyne. Moments later Yaya Toure’s late tackle on James McArthur, for which he was only booked, angered Eagles boss Alan Pardew, who stormed past Manuel Pellegrini and was tugged back by the City manager. Pardew, of course, has previous with Pellegrini following an infamous, foul-mouthed touchline spat when he was in charge at Newcastle two seasons ago. But he was less industrial with his language this time while insisting Toure should have been sent off for a “terrible” tackle, before the minor skirmish ended with a handshake between the rival bosses. Prior to that, Palace had been the more likely side to score with Yannick Bolasie firing over and forcing a low save from Joe Hart, Pape Souare’s volley bouncing narrowly wide and Yohan Cabaye tumbling in the box under Fernandinho’s challenge in what appeared a decent penalty shout, although the French midfielder did not appeal. All City had to show for their endeavours was a Wilfried Bony header which was comfortably saved by Alex McCarthy. Aguero’s departure inevitably blunted City’s attack still further for the rest of the first half, although De Bruyne did test McCarthy with one fierce drive in stoppage time. Palace could have gone in ahead at the interval, though, had Jason Puncheon’s shot dipped a couple of feet lower or Bakary Sako hit the target with a presentable far-post volley. Press Association After the break De Bruyne gave a glimpse of his undoubted quality with a slide-rule pass which sent Jesus Navas racing clear. The Spanish winger appeared to have done the hard work by rounding McCarthy, but then shanked his finish into the side-netting. Palace’s opportunity to nick the victory arrived 20 minutes from the end when Souare broke clear down the left and crossed for Puncheon, but England keeper Hart palmed his header clear to make it seven shut-outs out of seven for club and country this season. As stoppage time, approached Nasri’s shot was blocked by McCarthy but only into the path of Iheanacho, who made an instant name for himself by slotting home the winner. TWEET OF THE MATCH “Yeeeeessss @67Kelechi!!!!!!!” – Manchester City’s Pablo Zabaleta, not part of the playing squad on Saturday, keeps it short and sweet when summing up. Crystal Palace Alex McCarthy: 6 Martin Kelly: 6 Scott Dann: 6 Brede Hangeland: 5 Pape Souare: 7 James McArthur: 6 Yohan Cabaye: 7 Bakary Sako: 6 Jason Puncheon: 7 Wilfried Zaha: 7 Yannick Bolasie: 7 Subs: Dwight Gayle: 6 Mile Jedinak: 5 Chung-yong Lee: 5 Manchester City Joe Hart: 6 Bacary Sagna: 6 Vincent Kompany: 6 Eliguim Mangala: 6 Alexsandar Kolarov: 6 Samir Nasri: 6 Fernadinho: 6 Yaya Toure: 6 Jesus Navas: 5 Wilfried Bony: 5 Sergio Aguero: 5 Subs: Kevin De Bruyne: 6 Kelechi Iheanacho: 7 Martin Demichellis: 5 STAR PLAYER Jason Puncheon: The Palace midfielder is one of the in-form players in the Premier League so far this season and showed why with another all-action display, while coming close to breaking the deadlock twice. MOMENT OF THE MATCH Kelechi Iheanacho outshone fellow substitute Kevin De Bruyne and announced himself to the Premier League with a dramatic late winner just seconds after coming on. VIEW FROM THE BENCH Shorn of strikers due to injury, Palace boss Alan Pardew still went on the offensive with Puncheon, Zaha, Bolasie and Sako all giving the City rear guard plenty to think about. City missed the injured David Silva’s ability to unlock a defence but escaped with another win. MOAN OF THE MATCH The first half was far too stop-start as both sides resorted to niggly and, in some cases, cynical fouls. The bosses had a bit of a squabble on the touchline as well. WHO’S UP NEXT Tottenham v Crystal Palace (Premier League, September 20) Man City v Juventus (Champions League, September 15) Kelechi Iheanacho scored a dramatic late winner within seconds of coming on against Crystal Palace to preserve Manchester City’s 100 per cent record in the Barclays Premier League. The 18-year-old Nigerian striker marked only his second senior appearance with an 89th-minute goal to sink Palace 1-0 at Selhurst Park. Until the youngster’s late arrival, City looked set to drop points for the first time this season, while an injury to Sergio Aguero added to what was shaping up to be a frustrating afternoon in south London.