Chiefs guard Laurent Duvernay-Tardif suffered a fractured fibula and is likely headed for injured reserve, according to Ian Rapoport of NFL.com (on Twitter). It’s a bad blow for the Chiefs, but the good news is that he should be back later in the season. 
Duvernay-Tardif was injured in the fourth quarter of the Chiefs’ 30-14 win over the Jaguars. As coach Andy Reid explained, the fibula is a non-weight bearing bone, so LDT should be able to heal up before the end of the season.
Per league rules, the starting guard will have to spend at least eight weeks on the sidelines, meaning that he cannot return until Week 14, when the Chiefs face the Ravens. The Chiefs have their bye in Week 12, so Duvernay-Tardif might only miss seven games in total.
The Chiefs turned to Jordan Devey after Duvernay-Tardif exited the game, so he’ll probably get the starting nod in his absence. The Chiefs could also consider Andrew Wylie as an option and they’ll likely sign another interior lineman for depth in the coming days.
LDT, a Canadian import, was a sixth-round pick of the Chiefs in 2014. Since then, he has established himself as one of the better guards in the NFL. Last year, the Chiefs locked him up with a five-year, $41.25MM extension which included $14MM guaranteed at signing.
Since he is a doctor I wonder is he diagnosed the injury himself.