Last-gasp winner makes this one to remember It might be the newest derby in world football, but, for intensity at least, you wouldn't know it. This Sydney derby was another white-hot edition, with all the trimmings. Western Sydney would take the points this time, as they did last time, but for the first time at Parramatta Stadium. Having to wait until the 87th minute for the winner will make it extra special when it gets recounted many years from now. How the roar must have reverberated back down Victoria Road when Brendon Santalab was left in a paddock of space. Vedran Janjetovic tried to stop him but the substitute had the patience to poke the ball home. Electric: Youssouf Hersi. Despite the visitors' battling manner, the Wanderers deserved the win, having controlled the 90 minutes with authority - not to mention hitting the woodwork four times in the first half. Remarkably, it also featured a lad of barely 16, Daniel Alessi, taking the first steps of what already promises to be a long career. He made a splendid debut in replacing Jerome Polenz at right-back. As with any great derby, the action began before kick-off - although not in the stands as certain observers might have hoped - with Aaron Mooy replacing Mateo Poljak. Such are the endless ducks and drakes played by the Wanderers that it was hard to tell if the injury, said to have been sustained in the warm-up, was legitimate. We'll take their word for it. The story of the game early was most certainly Alessi. Where most would sink, he swam like a seasoned pro. Three minutes in, Ali Abbas looked to scorch the youngster with an open field beckoning but Alessi kept pace and won a free kick, drawing instantaneous trust from the home fans. Their duel was fascinating: twice Alessi took the Iraqi for pace and he'll be able to tell his classmates on Monday that he once left Alessandro Del Piero face down. Del Piero was subsequently granted a free kick, but that's a needless detail. Western Sydney looked to control the tempo but, inversely, that's not always how they like to play. It means they can't play on the break, which is where they traditionally do their most damaging work. The Wanderers were looking to break Sydney's backs before the half-time interval and nearly did when Youssouf Hersi saw Janjetovic off his line. Hersi, barely out of the centre-circle, floated an effort that would have been replayed around the world had it gone in. Instead, it smacked into the underside of the bar. Tomi Juric was first on the spot and all he had to do was nod the ball in, yet he replicated where Hersi bruised the bar. The stadium would have erupted in laughter if the stakes weren't so high. One saddening sight was seeing Brett Emerton was culled five minutes after half-time. The mind was more willing than the body; it has become a huge ask for him to play wide roles with the added running. The former Socceroo ran high-fives across the bench as he exited but the hollow body language couldn't hide his disappointment. Likewise, Del Piero was hauled off with 10 minutes to go. His performance was best summed by his final act: breaking into the clear before being beautifully pick-pocketed by the best-afield Matt Spiranovic. Instead, youth would be Frank Farina's hope of stealing the points. First came Corey Gameiro and then Chris Naumoff, replacing the tireless Matt Thompson. Dylan Caton, another debutant, replaced Del Piero. But it was another substitute who made the difference. Santalab might have made his name for Sydney FC for scoring spectacular goals, but he'll remember this tap in forever more.