ST KILDA produced one of their great wins of recent times with a 28-point victory over Collingwood last night, but it came at a massive cost as skipper Nick Riewoldt suffered a serious hamstring injury.Riewoldt sustained the injury just before half-time when he leapt for a mark. He immediately grabbed at his right hamstring when he hit the ground, before hobbling from the field for treatment.The Seven Network reported the All-Australian skipper had torn the hamstring tendon from the bone, which would require a lengthy stint on the sidelines.The Saints then lost another player, as defender Sam Fisher was carried off midway through the third quarter after he was knocked out in a heavy collision with Magpie Leon Davis as both players went for the ball.But despite playing two men down for the remainder of the night, the Saints kicked the only two goals of the third quarter and the only four of the last to score a confidence-boosting win.St Kilda’s win – their fourth in succession over Collingwood – kept them on top of the ladder at the start of round three and proved there is plenty of fight in a side stocked with talent.Brendon Goddard kicked two goals for the Saints and Nick Dal Santo set up the first two of the last quarter.Fisher returned midway through the last quarter, while Lenny Hayes starred early and then played out the game with a bandaged face after he was left bleeding when he ran into teammate Steven King.In a drama-filled match, a scuffle broke out before the opening bounce and another occurred at quarter-time.Spot fires continued in the second quarter between St Kilda goalsneak Stephen Milne and opponent Harry O’Brien, and Milne and former teammate Luke Ball – the Collingwood midfielder playing his old side for the first time in a premiership game. But St Kilda retained their composure, and fought back from a three-point deficit at half-time.Dayne Beams put Collingwood in front with the last goal of the first half, as Riewoldt left the field, but from that point the Saints dominated.Milne set his side alight with a dribbled goal at the start of the third quarter, but the Magpies literally kicked themselves out of the game.Travis Cloke had a shot immediately after Fisher was carried off but missed from 40 metres, and the Magpies’ kicking plummeted from there. They scored just six behinds in the third term and their second-half return was a dismal nine points.Riewoldt had been kept quiet in the first half by Simon Prestigiacomo, and also suffered an ankle injury in the second quarter, but returned to the field after five minutes of treatment.His hamstring injury will stretch the Saints given forward Justin Koschitzke still has one more game to serve of his suspension.AAP