Despite many observers yelling at the referees during Friday's Penn State ACHA Division I Icers game, one voice could be heard over all others.

"Are you kidding me?" Penn State coach Scott Balboni screamed from the bench.

"That's unbelievable, ref! Call the game both ways!"

In a weekend littered with big hits and fights, the No. 2 Icers (18-1-3, 12-0-0 ESCHL) dominated play and swept No. 13 West Virginia. The Icers won 5-1 Friday night and 6-2 Saturday afternoon at the Greenberg Ice Pavilion.

Both games were physical contests with emotions boiling over into a fight on Saturday afternoon.

The teams were upset with missed calls on hard hits into the boards Friday night. One blatant example resulted in an injury to West Virginia freshman forward Brent Hart, who didn't play Saturday.

Penn State junior forward Brandon Rubeo was ejected from Saturday's game after fighting behind the West Virginia net in the second period and will serve a one-game ACHA suspension for fighting.

After the altercation ended, the Icers were left with an extended 5-on-3 power play, which let them take control of the game.

Forward Mike McMullen scored on the 5-on-3, followed 50 seconds later by a power-play goal from forward Nate Obringer, putting the Icers up 5-1.

"We had to bury them when we got those opportunities," McMullen said. "We knew we had to get back the goal they scored right before, and we were fortunate enough to get two."

West Virginia (12-6-0) took undisciplined penalties in both games that resulted in game-changing goals for Penn State -- including a costly interference penalty on Friday.

In Game 1, the Icers had just taken a penalty, which would have given the Mountaineers a 5-on-3 advantage. Instead, West Virginia goaltender Rastislav Kret ran into a Penn State player on his way to the bench, causing it to revert to a 5-on-4.

Some 20 seconds later, the Icers scored a short-handed goal and went ahead 3-1.

"Their goalie took a bad penalty, and anytime you score short-handed, it's a game-changing goal," Balboni said.

"In this game, that goal broke their back and gave us a swing in momentum that we kept for the rest of the game."

The Icers took advantage of their opportunities by going 5-for-11 on the power play and outshooting the Mountaineers 88-34 for the series. Penn State dominated play for most of the weekend and moved to 14-0-1 in its last 15 games.

"We are in a position where we obviously have skilled guys," West Virginia coach Jeff Anderson said, "but Penn State has four complete lines of skilled players."

One of the biggest influences for Penn State's defensive play was from senior captain Keith Jordan, who was back in the lineup following a foot injury.

Jordan's experience and leadership skills showed, as the team killed all but one penalty and held the Mountaineers to the fewest number of shots over a weekend series all season.

"Our defense played really well, and the difference was the fact we had seven defensemen healthy and in the lineup," Balboni said of the tough wins this weekend.

"We wore them down by playing seven guys that were all fresh, and it pays off in these types of [physical] games."