The Chicago Bears got their 2015 season back on track over the weekend with a 22-20 win over the Oakland Raiders, but it came at a price.
Starting center Will Montgomery was unable to complete even the first set of downs during Sunday's encounter after suffering an injury to his leg on just the third play of the day.
And now, after the injury was confirmed as a fractured fibula, the Chicago Bears have been forced to place the veteran on the Injured Reserve list - bringing his ninth season in the NFL to a premature end.
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The loss of Montgomery's experience will be a blow to the Bears' offensive line, especially with the aggressive Kansas City D-line next up in what is a crucial game for the 1-3 franchise in week five.
Moreover, Chicago's other center, 2015 third-round draft pick Hroniss Grasu, having been dealing with his own injury issues over the first month of the season, there are question marks about who will step in to replace Montgomery.
Matt Slauson filled in at the position once Montgomery left the Raiders game, and, judging by head coach John Fox's comments in the aftermath of the game, the left guard could get the role moving forward:
“I thought [Slauson] was tremendous,” said Fox.
“That early in the game - I think it as about the third play that Will went out - it’s a two-man switch. Typically in this league, you go in with seven linemen, and even Patrick Omameh moving over to left guard and Matt going to center, it wasn’t all hunky-dory.
"But I thought they didn’t panic and just kept swinging the sword and did pretty well.”
(Yes, we know that is Montgomery playing for the Broncos, but the picture is too good to pass up.)
With Montgomery done for the year, it marks the first time since 2010 that the former Denver Broncos player will have started fewer than six games.
Bears fans: What has been the team's biggest problem in 2015? Have your say in the comments below...