Kansas City Chiefs wide receiver Sammy Watkins suffered a hamstring injury during the first quarter of Monday's game against the Denver Broncos and was ruled out.

Here are the injuries we're monitoring on the fourth Sunday of the 2018 NFL season.

Tyrod Taylor (concussion) cleared protocol and returned to practice Thursday. Rookie QB Baker Mayfield will start for the Browns this week and Taylor will serve as the backup if healthy. Here are other injuries we're monitoring.

Leonard Fournette sat out of Sunday's game against the New England Patriots, but the running back is set to return to practice Wednesday for the Jacksonville Jaguars.

Green Bay Aaron Rodgers returned to practice Saturday, but he remains questionable for Sunday's game against the Minnesota Vikings, NFL Network's Tom Pelissero reports.

Philadelphia Eagles wide receiver Alshon Jeffery said he is a few weeks away from returning to action after undergoing offseason rotator cuff surgery. Plus, other injuries we're tracking.

The Jaguars will go into their bout with the Steelers with only two quarterbacks on their roster. Jacksonville released third-string arm Ryan Nassib on Saturday.

Green Bay Packers running back Ty Montgomery (ribs) is doubtful to play against the Dallas Cowboys on Sunday. Plus, other injuries we're tracking on heading into Week 5's games.

Cleveland Browns' No. 1 overall pick Myles Garrett returned to practice this week after being sidelined with a high ankle sprain. Garrett however is listed as questionable for Sunday's game.

Injury news we are tracking across the league on this Week 3 Sunday afternoon.