Denver Broncos quarterback Joe Flacco (5) is sacked by Kansas City Chiefs defensive end Frank Clark (55) during the first half of an NFL football game, Thursday, Oct. 17, 2019, in Denver. (AP Photo/Jack Dempsey)

Kansas City Chiefs quarterback Patrick Mahomes (15) leaves the game after getting injured against the Denver Broncos during the first half of an NFL football game, Thursday, Oct. 17, 2019, in Denver. (AP Photo/David Zalubowski)

Denver Broncos quarterback Joe Flacco (5) warms up prior to an NFL football game against the Kansas City Chiefs, Thursday, Oct. 17, 2019, in Denver. (AP Photo/Jack Dempsey)

Kansas City Chiefs quarterback Patrick Mahomes (15) makes a call during the first half of an NFL football game against the Denver Broncos, Thursday, Oct. 17, 2019, in Denver. (AP Photo/David Zalubowski)

Kansas City Chiefs quarterback Patrick Mahomes (15) throws against the Denver Broncos during the first half of an NFL football game, Thursday, Oct. 17, 2019, in Denver. (AP Photo/David Zalubowski)

Kansas City Chiefs quarterback Patrick Mahomes (15) lies on the field after being injured against the Denver Broncos during the first half of an NFL football game, Thursday, Oct. 17, 2019, in Denver. (AP Photo/David Zalubowski)

Kansas City Chiefs quarterback Patrick Mahomes (15) is helped by trainers after getting injured against the Denver Broncos during the first half of an NFL football game, Thursday, Oct. 17, 2019, in Denver. (AP Photo/Jack Dempsey)

Kansas City Chiefs quarterback Patrick Mahomes (15) is helped by trainers after getting injured against the Denver Broncos during the first half of an NFL football game, Thursday, Oct. 17, 2019, in Denver. (AP Photo/Jack Dempsey)