Bears LB Nick Kwiatkoski steps up in place of injured LB Danny Trevathan

The Bears lost starting LB Danny Trevathan to a gruesome elbow injury, but reserve LB Nick Kwiatkoski stepped up in his absence.

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When Bears linebacker Danny Trevathan suffered a gruesome elbow injury, backup Nick Kwiatkoski rose to the occasion in his place in Chicago’s 20-13 victory over the Lions.

Trevathan left the game in the first quarter after his arm bent the wrong way as he attempted to sack Lions quarterback Jeff Driskel. Trevathan immediately left the field, knowing that something was wrong.

While Bears coach Matt Nagy didn’t offer an update on Trevathan’s injury, it appeared to be similar to defensive tackle Akiem Hick’s elbow dislocation, perhaps worse.

Kwiatkoski relieved Trevathan with one of the best games of his career. He finished second in tackles with 9, recorded a sack and had the Bears’ lone takeaway — an interception of Driskel early in the third quarter, which led to a Bears scoring drive.

Kwiakoski once again proved to not only be an adamant fill-in but a productive one, just like he did earlier this season in place of linebacker Roquan Smith, who was a healthy scratch against the Minnesota Vikings.

‘‘It’s just preparation,’’ he said, via the Sun-Times. ‘‘As a linebacker, you plan on playing. Things happen throughout the course of a season, and you have to be ready for it.’’

Trevathan looks to be out awhile with his elbow injury, and Kwiatkoski suddenly has a big opportunity in front of him.

‘‘It’s not the way I want it to happen,” Kwiatkoski said. “Danny’s a close friend of mine.’’

But Kwiatkoski will get his chance this week as the Bears travel to Los Angeles to play the Rams on Sunday Night Football.

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