The Chicago Bears took a hit on Thursday when center Lucas Patrick had to leave practice early with what was an undisclosed injury, at the time.

It was later reported that Patrick broke a finger and the injury required surgery. As for Patrick’s recovery timeline, head coach Matt Eberflus told reporters Friday that the Bears would not disclose that information.

“One of the topics that is out there right now is obviously Lucas Patrick. And how we’re going to disclose this [is] we’re just going to say he hurt his right hand and there’s no timetable on the return,” said Eberflus. “Because we don’t have to disclose that. So, we’re not going to give that out for anybody. That’s how it is.

“The reason I’m giving that out is because he is going to be out [for] a little bit of time. It’s not just a soft-tissue injury or something where he might be out a couple days. This is more than that, but we’re not going to give timetables on that.”

Fortunately, NFL Network’s Ian Rapoport is willing to disclose a timeline. Per Rapoport, Patrick is expected to miss around six weeks, but should be ready by the time Week 1 of the regular season rolls around.

“They [the Bears] had to do without starting center Lucas Patrick [because] he’s set to miss about six weeks, as he requires surgery for a broken thumb,” Rapoport said on the latest episode of NFL Network’s NFL Total Access. “There is some early optimism that Patrick should be out there for Week 1, assuming all goes well.”

While it’s encouraging that Patrick should be ready for the regular season, it’s still a blow to the Bears. The center position is arguably the second-most important position on offense behind the quarterback position. And, to add another layer, the QB-C relationship is one that definitely needs time and work to develop. Patrick missing time will certainly affect the chemistry between he and Justin Fields.

The Bears have plenty of options to sift through in Patrick’s stead, but there’s little doubt that he’s certainly the best option for the Bears’ center position.

Per The Athletic‘s Adam Jahns, Sam Mustipher and rookie sixth-round pick Doug Kramer shared reps at center with the 1s on Friday.

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