Gray caught two of his three targets for 17 yards in the Chiefs' 30-27 win over the Raiders on Sunday.
Johnson caught his lone target for 10 yards in Sunday's 30-27 win over the Raiders.
Moss had imaging done on his ribs Monday, Ian Rapoport of NFL Network reports.
Thornton is slated to undergo surgery later this week to address the dislocated left ankle he sustained in Sunday's 30-27 win over the Raiders and is facing an expected recovery timeline of 3-to-4 weeks, Matt Zenitz of CBSSports.com reports.
Rice (hamstring) is believed to have sustained a "relatively minor" injury in Sunday's win over the Raiders and could be ready to play following the Chiefs' Week 5 bye, Ian Rapoport of NFL Network reports.
Surtain (ankle) is expected to miss "about two weeks," Jeremy Fowler of ESPN reports.
Bryant is expected to miss "a few weeks" after spraining his right ankle in Sunday's 24-14 loss to the 49ers, Adam Schefter of ESPN reports.
Surtain (ankle) will undergo an MRI on Monday, and while the cornerback is believed to have avoid a season-ending injury, he's expected to miss time, Ian Rapoport of NFL Network reports.
Walker rushed 22 times for 177 yards and two touchdowns while catching his only target for two yards in Sunday's 30-27 win over the Raiders.