The infraction occurred when Rinaldo came across the ice and dropped his shoulder, making contact with Ruhwedel's head. From one angle, it appears that Rinaldo jumped into the hit that sent Ruhwedel spinning to the ice. The Sabres' defenseman left the ice under his own power and did not return to the game.
According to Buffalo News beat writer Mike Harrington, Ruhwedel suffered a concussion.
The officiating crew handed Rinaldo a match penalty for contact to the head, which instantly disqualifies a player from the remainder of the game, carries a five-minute major, and requires that a report be filed to the league.
It was not Rinaldo's first run-in with the refs on the night, as hie also picked up penalties for charging and tripping earlier in the game. He also scored a goal in the second period.
Rinaldo on his illegal hit to the head: "I shouldn't have done it; we're up 4-0 and there was no need for it."#Flyers
— Sam Carchidi (@BroadStBull) April 7, 2014
The Flyers forward is no stranger to supplemental discipline. He received a two-game ban for an illegal hit on Red Wings defenseman Jonathan Ericsson in 2012, and was fined for two separate incidents in a single game prior to the Ericsson hit. His 153 penalty minutes in 67 games this season ranks fourth-highest in the league this season.