CALGARY, Alberta — The Rangers had one of their ugliest losses of the season against the Flames just under two weeks ago — and this one was worse.

Concluding their four-game road trip, the Rangers gave up three third-period goals for the second time in as many games and were blanked by the Flames, 6-0, on Saturday night at Scotiabank Saddledome. That was on the heels of their recent 5-1 loss to Calgary on Oct. 25.

The shutout defeat was the first of the season for the Rangers, who have now lost three in a row after entering the game fresh off of two consecutive overtime defeats against the Canucks and Oilers.

“We’ve talked about it, we haven’t beaten the Edmonton’s or the Calgary’s of the world yet,” Chris Kreider said after the loss, which dropped the Rangers to 6-3-3 as they head home to face the Panthers on Monday. “We gave ourselves a chance the other night against Edmonton, got away from our game, I don’t know if we got bored with doing the simple things. And then tonight, didn’t trust the system when we were down 3-0 and the wheels fall off.

“Igor [Shesterkin] has been our best player and has carried us to this point and for us to do that to him in the third is unacceptable.”

On the night the Rangers activated Ryan Reaves off injured reserve after the 34-year-old winger missed four games with a lower-body injury, the injury obstacles continued when Filip Chytil went down. In the opening minutes, Chytil and Sammy Blais collided at center ice, with No. 72 taking the brunt of it.

Chytil was slow to get up and immediately headed to the locker room, where the 22-year-old center stayed for the rest of the game. Head coach Gerard Gallant didn’t have an immediate update on the Rangers’ third-line center, who sustained a significant wrist injury in a similar on-ice crash with the Penguins’ Evan Rodrigues last season.

The Rangers were able to shuffle their centers around effectively when second-line middle man Ryan Strome was put in COVID-19 protocol two games into the season, but it’s yet to be seen if they will be able to do it again. It’s likely Greg McKegg, who was sent down to AHL Hartford on Saturday to make room for Reaves, will be recalled if Chytil is unavailable.

Calgary pushed the tempo against the Rangers, while also making a point to contain their net-front presence and body the Blueshirts off the puck every chance they got. Between Flames winger Matthew Tkachuk’s relentlessness — in addition to a goal and three assists — and the rest of Calgary’s cohesive play, the Rangers had no answer.

Even with a power-play opportunity in each period, the Rangers generated six shots on goal but none could find the back of the net. Johnny Gaudreau also notched two goals on Shesterkin, who has only given up six goals one other time in his brief NHL career.

Adam Fox, drafted No. 66 overall by the Flames in 2016, was booed by Calgary fans every time he touched the puck. As the jeers rained down on him, Fox backhanded the puck in through traffic at 18:17 of the first period — but the Flames challenged for offside and the goal was overturned to send the Rangers into the second period trailing by a goal.

“It obviously would’ve been nice if that counted, but it was 1-0 at that point,” Barclay Goodrow said. “One goal isn’t going to deflate us when the leads only one, but we obviously have to do a better job in responding.”