PORTLAND – The only player stopping Kristina Block on Saturday afternoon was Kristina Block.

Block scored four goals, and Alyssa Hulst had a goal and two assists to lead Scarborough to a 5-0 victory over Cheverus in a Western Class A girls’ hockey game at Portland Ice Arena.

Block knocked herself from the game when she crashed into the end boards after her third goal, which gave the Red Storm a 4-0 lead early in the second period.

“I had too much momentum to stop and I didn’t have very much space,” Block said. “I went in on my knees and jammed my back, and it knocked the wind out of me.”

That left the Red Storm (7-3-1) holding their breath.

“Her lower back was bothering her, so we sat her out for a few shifts,” Scarborough Coach Caitlin Cashman said. “But she’s a really competitive kid, and she wanted to go back in.”

Block returned 7:40 later, and tucked a cross-slot pass from Hulst inside the post four seconds into a power play for the final goal.

Blame Falmouth for Block’s outburst. She wasn’t happy with her team’s 2-1 loss Friday, which ended an unbeaten run at four games.

“I don’t think we played very well as a team (Friday),” Block said. “We were definitely upset and had a lot of fire in us today.”

That pleased Cashman, who wanted her players to look ahead.

“Cheverus is always very sound defensively, so we knew we had to challenge their goalie,” said Cashman. “We needed to move the puck, to get our heads up and shoot.”

Injuries and illness altered Cheverus’ plans. Starting goalie Allie Spinney was hurt last week in a travel-team tourney in Connecticut, so she sat out with her right shoulder packed in ice. Forward Dana Maloney moved back to goal and played admirably (36 saves), but the Stags (3-4) missed her presence up front.

“The injury probably made a big difference in this game,” said Cheverus Coach JP Lavoie. “I thought Dana played great. But when one of your forwards is now playing goal, that changes the dynamics.”

Despite the score, Cheverus never seemed out of the game. With Sarah LaQuerre and Katie Roy each anchoring a defensive pairing, the Stags almost always had someone on the ice who posed a threat.

“You just have to know they’re shooters and you really have to focus,” said Scarborough goalie Devan Kane, who finished with 18 saves. “Our defense did a really good job of pushing them to the outside.”

Block, Hulst and Sarah Martens (two assists) kept Maloney busy, thanks in part to the attacking play of defensemen Kristen Murray, Samantha Nablo and Brenna Kent. Through much of the first two periods, Scarborough kept the puck pinned in the Stags’ end.

“When our defensemen hold the blue line,” Cashman said, “it helps us get scoring opportunities and it shows that they have confidence and it sort of radiates confidence throughout the team.”

The Stags’ best chance to score came during a five-on-three power play at 8:52 of the third period, after Megan Martin (tripping) and Price (slashing) were sent off.

But strong play by Scarborough’s penalty-killing units helped keep the Stags at bay.

“With all of our players in their spots,” Lavoie said, “I think we can make it a different game.”