Davis finished with 10 tackles (seven solo) and one sack in Sunday's loss to the Vikings.
Davis' 10 tackles marked his first double-digit output of this season and the veteran also added a sack for good measure. Through three games, Davis has totaled 17 stops, one sack and one interception, making for a well-rounded statistical profile.
With Shane Vereen out indefinitely, Rainey could see work as the team's third-down back.
Rashad Jennings is still iffy for Week 4, Orleans Darkwa isn't known for his pass catching and rookie Paul Perkins is considered raw, so Rainey is probably the favorite for pass-catching work out of the backfield.
Head coach Pete Carroll said Monday that he expects Wilson (knee) to practice Wednesday, before suiting up Sunday against the Jets in New York, Liz Mathews of 710 ESPN Seattle reports.
Carroll also expressed caution during the media session, but Wilson is "remarkably well off" for the type of play that resulted in his current diagnosis of a sprained MCL in his left knee. After suffering a sprained right ankle in the regular season opener, Wilson upheld Carroll's expectation with full practices throughout Week 2 preparations, but the quarterback's mobility has been noticeably lacking, with just 10 carries for 33 yards on the season. With a more serious injury in tow this time around, limited showings could very well be on the docket. However, after a few days of rehabilitation, Wednesday's injury report will reveal whether Wilson is again able to tough it out.
Peters intercepted two Ryan Fitzpatrick passes in Sunday's game against the Jets.
This is the second straight week Peters has picked off two passes, giving him four on the season. The second-year wideout continues to prove his worth as the Chiefs' first-round selection in 2015 and appears well on his way to another Pro Bowl nomination.
Barth connected on a 34-yard field goal and converted a pair of extra point attempts Sunday against the Cowboys.
Barth made his first field goal of the season, and he ended up with five points. With only two field goal attempts over three games, he's not a fantasy option, except in the very deepest of leagues.