Failed offside challenge now a penalty

League wants to keep number of reviews in check.

The NHL has a clear message to coaches starting this season: Don’t challenge an offside call unless you are really sure.

At times last season, coaches challenged on the off chance a goal would get called back or to at least give players a breather because all it cost was a timeout. That is expected to change because a failed offside challenge will instead result in a two-minute minor penalty as the league tries to get the coach’s challenge closer to what it was intended to be.

The NHL’s Board of Governors gave final approval for the rule change Wednesday.

Last season, the second with coach’s challenges for offside and goaltender interference, there were 117 challenges for offside, 78 of which were upheld and 39 overturned. That’s a big increase from 2015-16 when there were 88 offside challenges, 53 upheld and 35 overturned.

e in effect trying to discourage using the coach’s challenge on offside unless you’re really 100 percent certain that you’re going to win because it was a blown call,” Commissioner Gary Bettman said. “The coach’s challenge was really intended to focus on glaring errors. And by imposing a two-minute penalty if you’re wrong, it should limit the number of challenges to those instances where there’s a glaring error.”

It’s still not perfect because a coach who wants to take a chance can still claim goalie interference in some instances. And there’s still the concern that challenges take too long to figure out, but the league hopes fewer unneeded reviews make for a positive step forward.

Here are some other rule changes this season:

No timeout after icing: Since 2005, teams have been unable to make line changes after icing the puck, with the design of creating some extra offense from fatigue. Coaches got around the rule by calling timeout to provide players some extra rest, but now that won’t be allowed.

“That’s consistent with the original intent of the icing rule that there was to be no substitution by the team that iced the puck,” Bettman said.

Faceoff violations: This isn’t a rule change, but officials will be calling players for not obeying the markings around faceoff circles.

Slashing: On-ice officials and the league office will be taking a closer look at and calling more slashes in and around the hands to reduce injuries.