The Kansas City Chiefs (9-1) are in Los Angeles to face the Rams (9-1) and might be without one of their biggest weapons. Wide receiver Sammy Watkins, who played for the Rams in 2017, is questionable for Monday's game with a foot injury.

Watkins was kept out of practice on Friday and Saturday after being limited in practice earlier in the week. Chiefs head coach Andy Reid told reporters on Saturday that the 25-year-old is making progress.

"We are taking that day by day," Reid said. “We will just see how he does as we go here."

Sammy Watkins #14 of the Kansas City Chiefs turns after scoring a touchdown during the second half against the Denver Broncos at Arrowhead Stadium on October 28, 2018 in Kansas City, Missouri. Peter Aiken/Getty Images

The Chiefs upgraded wide receiver Gehrig Dieter from the practice squad to the active roster over the weekend, signaling that Watkins might not be active in one of the biggest games of the season.

The former Alabama prospect joined the Chiefs as an undrafted free agent in 2017. Dieter has not recorded any catches in the NFL. Chris Conley and Demarcus Robinson will likely get the bulk of Watkins’ targets if he cannot play.

Watkins has 39 receptions for three touchdowns and 515 yards this season. With the Rams in 2017, Watkins caught 39 passes for eight touchdowns and 593 yards.

Chiefs quarterback Pat Mahomes was listed on the injury report with a foot injury but practiced all week and will play.

The Rams will be without wide receiver Cooper Kupp for the rest of the year, but the team activated All-Pro returner Pharoh Cooper from IR on Monday.

The game will be played in Los Angeles after moving from the famed Azteca Stadium in Mexico City due to poor field conditions. The Rams are favored by three points.