Christian McCaffrey is active for the San Francisco 49ers' game against the Kansas City Chiefs.
McCaffrey's availability comes just three days after the 49ers and Carolina Panthers agreed to a blockbuster trade for the star running back and just two days after he flew to San Francisco and joined his new employer.
The 49ers have a package of plays in Sunday's game plan for McCaffrey, who has picked up what he could of the offense quickly, sources told ESPN's Adam Schefter.
It's one reason the 49ers and Los Angeles Rams were as interested in trading for McCaffrey as they were -- both teams valued his football IQ and the Rams even considered him to be, as one source described, "the Cooper Kupp of running backs.