The heart of the Detroit Lions offensive line took a hit in the first half of the divisional-round matchup with the Tampa Bay Buccaneers.

Left guard Jonah Jackson was ruled out with a knee injury, the team announced early in the third quarter.

Jackson gingerly walked off the field with a knee injury on the Lions' second-to-last possession of the first half after blocking on a David Montgomery run. He tried to return to the field with a sleeve on his leg, according to the NBC broadcast, but quickly left and received more treatment from trainers. He was replaced at left guard by Kayode Awosika.

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Center Frank Ragnow limped off the field with an apparent knee injury on the ensuing possession but will return after halftime. Jared Goff was sacked into the back of Ragnow's legs by Calijah Kancey, and the two players rolled up the back of Ragnow's left leg while he was engaged in a block with Vita Vea. The second-team All-Pro center laid on the Ford Field turf holding his left knee, before limping off the field under his own power.

Ragnow, who offensive coordinator Ben Johnson called a "secret weapon" during the week, returned to the bench and received minimal treatment from trainers before they left his side, according to the Free Press' Dave Birkett.

This article originally appeared on Detroit Free Press: Detroit Lions' Jonah Jackson ruled out with knee injury