Magpies wake up to thrash Giants Collingwood have survived one hell of a scare from Greater Western Sydney, running away in the final quarter to secure a 40-point win. Magpie Dane Swan on his way to 39 disposals and three goals against the Giants Source: Getty Images COLLINGWOOD has survived a major scare from Jeremy Cameron and Greater Western Sydney to win their AFL match by 40 points. Cameron again showed his potential to become an all-time AFL great by kicking his first seven-goal haul and he was clearly best afield in the twilight match on Saturday at the MCG. The Magpies only led by two points at three-quarter time, but kicked six goals to one in the final term to win 15.16 (106) to 10.6 (66). Midfielders Dane Swan and Dane Beams were best for the Magpies. A loss would have been disastrous for the Magpies, who are only two games inside the top eight. GWS remain winless, but were impressive for much of Saturday's match. Cameron kicked the Giants' first five goals and now has 50 goals for the season, putting him third on the Coleman Medal tally. It was the last game at the MCG as a player or coach for Giants mentor Kevin Sheedy. Collingwood kicked three goals in the opening three minutes of the third term to regain the lead, but the young GWS side did not give in, with Cameron kicking two goals in the term. His second goal in the third quarter was a beauty - with Lachlan Keeffe pressuring him, Cameron calmly tapped the ball ahead and the goalled from an acute angle on the run. GWS regained the lead 19 minutes into the term, but a goal to Jamie Elliott two minutes later meant the Magpies were in front at the last change. Collingwood forward Ben Reid kicked the first goal of the game inside the opening minute, but Cameron replied soon after. GWS suffered an early blow when key defender Tim Mohr was knocked out in a marking contest. His replacement Adam Kennedy was also forced off the field in the third term because of a blow to the head, but returned to the field. Teammate Will Hoskin-Elliott was concussed in the final term. It became evident early in the first term this was going to be no cakewalk for Collingwood as Cameron fired and the Giants sniffed an opportunity. Nathan Brown did not last on Cameron until quarter-time, with Keeffe going onto him. A late goal to Beams meant the Magpies only trailled by four points at quarter-time, but they were clearly misfiring. Mark Whiley performed a disciplined lockdown role on star Collingwood onballer Scott Pendlebury and generally the Magpies lacked intensity. Coach Nathan Buckley started coaching from the boundary line during the second term, his body language as he prowled the dugout reflecting a growing sense of concern for Collingwood. Cameron continued to be the only Giants goalscorer when he put through his fifth early in the second. Midway through the term, a silly attempt to shepherd by Ben Sinclair at a kick-out meant a free kick to Devon Smith, who became the Giants' second goalkicker. Dylan Shield goalled on the run to give GWS an improbable 16-point lead at halftime. Nothing symbolised Collingwood's plight more than the pro-Magpies crowd booing as the players left the field at halftime. Goals: Collingwood: D Swan 3 S Sidebottom 3 T Cloke 3 B Reid 2 D Beams H O'Brien J Elliott J Witts. Greater Western Sydney Giants: J Cameron 7 D Shiel D Smith T Scully. Best: Collingwood: D Swan D Beams M Williams J Blair S Sidebottom H Shaw. Greater Western Sydney Giants: J Cameron C Hampton M Whiley D Shiel C Ward J Giles. Injuries: Collingwood: B Reid (ankle). Greater Western Sydney Giants: T Mohr (head) W Hoskin-Elliott (head). Umpires: Ben Ryan, Jason Armstrong, Gary Fila Crowd: 32,691 at MCG.