The Kansas City Chiefs could have their best pass-rusher available for Sunday's tilt with the Denver Broncos. Defensive end Frank Clark, who is dealing with a stomach illness, has shown encouraging signs to the coaching staff and Andy Reid.

Clark was back at practice on Friday after having his stomach ailment evaluated on Wednesday and Thursday. Though there is still another appointment with a specialist to get through, he is showing progress to play on Sunday.

We’re heading in the right direction there,” Reid said on Firday, via Herbie Toepe of The Kansas City Star. “We’ll just see how it all works out, but he looked like he moved around pretty good today.”

Of course, Clark's appointment with the specialist will ultimately decide if he does play against the 5-8 Broncos.

Clark came down with the illness before Week 14's win over the New England Patriots. It, reportedly, cost him 12 pounds, which he flushed out of his body. Nevertheless, he did choose to play in Foxboro. Though he didn't start, he made an impact, tallying four tackles and a sack while playing less than half of the team's defensive snaps.

The Chiefs acquired Clark from the Seattle Seahawks in a blockbuster 2019 offseason trade. They shipped off 2019 first-round and third-round picks and a 2020 second-round selection in exchange for the 26-year-old pass-rusher and a Seahawks 2019 third-round pick. Shortly after, they signed him to a five-year contract worth $105.5 million.

In 11 games with the Chiefs in 2019, Clark has tallied six sacks, 32 combined tackles, 10 tackles for loss and nine quarterback hits. Five of those six sacks have come within his last five appearances.