DENVER (AP) -- Curtis Joseph recorded his second straight shutout and Bill Guerin scored his sixth goal of the playoffs, helping the Edmonton Oilers clinch their first-round series with a 4-0 upset of the Colorado Avalanche on Monday night.The Oilers, becoming only the 14th team in NHL history to rally from a 3-1 deficit and win a best-of-7 series, will meet Dallas in the Western Conference semifinals.
Edmonton also rebounded from a 3-1 deficit in the first round against Winnipeg in 1990, going on to win its fifth Stanley Cup.
With his third consecutive standout game in goal, Joseph extended his shutout streak to 163 minutes, 40 seconds since allowing a breakaway goal to Stephane Yelle late in the first period of Game 5. He had 31 saves.
Colorado's Patrick Roy, who failed in his third straight try for an NHL-record 100th playoff victory, had 13 saves.
Although they were outshot 31-17, the Oilers capitalized on their scoring opportunities while limiting the chances of Colorado stars Peter Forsberg and Joe Sakic, both of whom went scoreless for the third straight game.
Edmonton took a 2-0 lead in the first period despite being outshot 12-5 and having to kill off nearly eight penalty minutes.
The Oilers went ahead on defenseman Janne Niinimaa's goal at 4:22 of the first period. Just as Colorado's Keith Jones was leaving the penalty box at the end of a roughing penalty, Tony Hrkac passed across the crease to Niinimaa, whose shot from the left circle sailed over Roy's right shoulder.
It was the fifth goal of the series by an Edmonton defenseman; Colorado's defensemen had none.
Late in the period, Guerin made it 2-0. Doug Weight passed from the right side to a breaking Guerin at mid-ice. Guerin steadied the bouncing puck and his shot from the slot slipped between Roy's legs at 19:22.
The Avalanche, who failed to score on four power-play opportunities to extend their scoreless streak to their last 17 power plays, were booed by the hometown crowd as they left the ice at the end of the period.
Midway through the second period, Todd Marchant made it 3-0. After a turnover by Colorado's Sandis Ozolinsh, Kelly Buchberger passed to Marchant just left of the crease. It was Edmonton's third goal in just 10 shots.
Joseph made a sprawling save moments later to rob Rene Corbet. Joseph was upended by a teammate while trying to clear the puck. He scrambled back to the goal but overskated it, then dived back and got a stick on Corbet's shot.
Corbet, expected to be sidelined four to six weeks after having surgery on a broken left thumb suffered in the series opener, played just 12 days after the injury.
Mats Lindgren scored early in the third period on a breakaway, punching in his own rebound at 1:45.
