OWINGS MILLS, Md. — To fulfil his job responsibilities, Baltimore Ravens defensive coordinator Don “Wink” Martindale had to rewatch Sunday’s 33-28 loss to the Kansas City Chiefs. It wasn’t a pleasant experience.

“I lost four pounds this week,” Martindale said, “because I watched it three times and threw up all three times.”

That’s one way to make a point. Martindale said a game like Sunday’s, in which the Ravens and Chiefs combined for 955 total yards, would leave any defensive coach feeling ill. And Martindale also felt his unit didn’t display the qualities that fit with his idea of Baltimore’s defensive identity during the defeat at Arrowhead Stadium.

Last season, the Ravens allowed the fewest yards in the NFL, rarely gave up long completions and often closed out key victories with stops in the final moments.

Kansas City, though, burned Baltimore with an 83-yard reception — among other big plays — and clinched the win by converting a third-and-9 on screen pass with less than two minutes left. The Chiefs led the NFL in scoring last year, but their explosive offense didn’t seem to dull the sting Martindale felt after what he viewed as a poor outing from his defense.

“The biggest disappointment we had is we had a chance to get them off the field there at the end, and we didn’t do that,” Martindale said. “So, you know, we’ve gone back and looked at it. We’ve corrected some things that have happened. We’ve talked about communication and other things. … We’re moving forward.”

In looking beyond the loss to Kansas City, the Ravens (2-1) can begin to focus on their first AFC North matchup Sunday against the Cleveland Browns (1-2), who also litter their offense with talented playmakers. Wide receivers Odell Beckham and Jarvis Landry give Browns quarterback Baker Mayfield Pro Bowl-caliber targets in the pass game.

Before Baltimore’s defense can stop Beckham and Landry, it had to diagnose in-house issues. That’s what led Martindale to his uneasy film sessions early this week.

Safety Earl Thomas said he feels confident the Ravens will rectify their issues. He pointed out that starting cornerback Marlon Humphrey left Sunday’s game with an injury one play before Chiefs quarterback Patrick Mahomes rifled an 83-yard touchdown pass to rookie receiver Mecole Hardman, who ran downfield uncovered.

“We just have to be on the same page,” Thomas said. “The communication wasn’t there, and that’s what we need to continue to work on. If you remember, going back to that play, Marlon was out. So, that was a glaring example, for me. When young guys come in, or guys that aren’t usually in those spots come in, we definitely have to get them up to speed and communicate, and make sure they know what’s going on.”

Coach John Harbaugh also said eliminating those lapses in coverage will be key for the Ravens moving forward.

“We work hard at it – try to put guys in position and teach them in a way that they can learn it – and also set it up in a way that when the bullets are flying, they’re able to make good choices,” Harbaugh said. “So that’s on us as coaches. We work really hard at that, and we have to do a better job of that to not have those big plays. Big plays are bad. They shouldn’t happen to our football team.

“We’re not the type of team that gives up big plays, and we’re not happy about that at all. And that will get fixed. There’s no question. Period. It will get fixed.”

Like Harbaugh, Martindale felt the Ravens’ struggles Sunday were uncharacteristic, which perhaps made the film from the Chiefs game even more nauseating. The Chiefs on Sunday fooled Baltimore with short passes and broke off runs of 41 and 25 yards.

Martindale said those missteps were “not Ravens football.”

Outside of the team headquarters, fans have expressed concern that Baltimore’s defense is becoming the type of unit that experiences regular breakdowns. The Cardinals gashed the Ravens secondary at times in Week 2, and those issues worsened against Kansas City in Week 3.

For coaches at the Under Armour Performance Center, the plan is to halt the trend of mishaps and help the Ravens’ defense rebound. To do that, Martindale studied the mistakes from Sunday — and now that he has, he isn’t looking back at the film. He’s endured enough.

“We’re onto the Browns,” he said. “Are we disappointed? Yeah, we’re disappointed because the standard is so high. But we’ve got the Cleveland Browns coming in here and we know about that offense and the weapons they have, so we’re onto the Browns.”

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Aaron Kasinitz covers the Baltimore Ravens for PennLive and can be reached at akasinitz@pennlive.com or on Twitter @AaronKazreports. Follow PennLive’s Ravens coverage on Facebook and Youtube.