The Avs scored twice in the third period and have outscored their opponents 14-5 in the final frame of regulation over their last seven contests. Colorado now has 86 markers in the third period, ranked second in the league to the Calgary Flames (93).
"We have to have the chip on our shoulder right away, right off the bat," added Rantanen. "I don't think we were playing the same way in the first and second that we were playing in the third. Have the urgency in the first two periods as well and have a good start."
SHORT TRIP CONCLUDES SUNDAY: Colorado wraps up its two-game road trip against another Pacific Division team, as the Avs play at the Anaheim Ducks on Sunday afternoon.
It will be the 10th day game of the campaign for the Avalanche, which is 4-3-2 so far this season and has a 3-1-2 mark on the road in matinee outings.
The contest will also mark the second time this year that the Avs and Ducks have met. The first meeting also took place in Southern California, and Colorado scored with two seconds remaining in overtime to earn a 4-3 victory on Nov. 18.
The three-game season series between the Avalanche and Ducks will conclude on March 15 in Denver.
COLE RETURNS TO GAME ACTION:Defenseman Ian Cole returned to the Avs lineup against the Sharks after he missed 11 games with an upper-body injury that he sustained at the Washington Capitals on Feb. 7.
He began the game on a pairing with Nikita Zadorov and recorded one assist and a plus-1 rating in 20:16 of ice time.
"Great compete level, did some good things," head coach Jared Bednar said of Cole. "I am sure he will improve as he goes, but I liked his game coming back. He was involved physically, and he kind of picked up where he left off. I thought he was pretty good."
The 30-year-old rear guard has 11 points (one goal, 10 assists) through 54 games this campaign and replaced rookie Ryan Graves on the blue line.
JOHNSON SKATES IN GAME 700:The Avalanche's Erik Johnson skated in his 700th NHL game, becoming the first defenseman from the 2006 NHL Draft to reach the mark.
"Obviously 700 seems like a lot when you first break into the league when you are 19," the blueliner said pregame. "Every 100 games you play is a good milestone and it goes by fast, you got to enjoy it and appreciate it. You never know how many you are going to be able to play, so you got to treat every day as a gift and a blessing."
Johnson is now the 47th U.S.-born defenseman to reach 700 games. He has registered 75 goals and 206 assists for 281 points during his NHL tenure.
MORE NOTES:Gabriel Landeskog recorded an assist on all three Colorado goals, the fourth time this season he's registered three or more points. His three helpers also match a career high, a feat he has accomplished three times, last doing so on March 15, 2018 at the St. Louis Blues.
Nathan MacKinnon finished with two shots to bring his season total to 284 and match his career high set during the 2017-18 campaign.
Zadorov had five shots on net in the loss, a season high, and now has three points (two goals, one assist) over his last four games.