Bears rookie Dillon Thieneman, girlfriend Greta Segert turn heads on Sunday

Dillon Thieneman is all set for his rookie season with the Chicago Bears. He fully participated in training camp and saw some action during team’s first two postseason games. However, he took time off work and celebrated a relationship milestone on Sunday with her girlfriend, Greta Segert.

The Bears selected Thieneman at No. 25 overall out of Oregon. He shined with the Ducks in 2025, earning first-team All-American honors. The safety recorded 96 combined tackles consisting of 52 assisted and 44 solo efforts. He added 3.5 tackles for loss and 1.0 sacks in 15 regular-season games.

Thieneman will play a bigger role to start his professional career following Coby Bryant’s injury. The veteran suffered a knee injury on Aug. 3 and has since undergone surgery. He will be out for four to six months.

New Chicago Bears rookie Dillon Thieneman meets with the media at the 2026 NFL Combine.

Chicago Bears: Dillon Thieneman celebrates 2nd anniversary with Greta Segert

Thieneman posted photos of him and Seger during different moments of their relationship. It featured snaps from date nights, her graduation and from Oregon games, among others. The 22-year-old added a message for his girlfriend.

“Happy 2 year Anniversary! Amazing memories, can’t wait to make more. Love you,” Thieneman wrote.

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A post shared by Dillon Thieneman (@dillonthieneman)

Fans wished them well and reacted to the pictures in the comments section.

“Love this ,” a user wrote.

“Beautiful Couple! ,” one comment read.

“Great to see new couples may God Bless with matrimony,” a fan said.

“Happy Anniversary you two ,” posted another.

“Happy Anniversary Boiler Makers,” a reaction read.

“Big Greta and Dillion fan! So sweet,” another fan commented.

Thieneman and the Bears will play their third preseason game on Saturday against the Tennessee Titans. He could see some action in the matchup as the team prepares for the start of the 2026 campaign. Chicago will open its slate with a road game versus the Carolina Panthers on Sept. 13, and Thieneman will likely play a significant role in the fixture.