Three days after their season-opening loss to the San Francisco 49ers, the Los Angeles Rams took another hit on Sunday. Rams star defensive end Myles Garrett will undergo surgery on his injured left knee and likely will be placed on injured reserve, meaning he'll miss four games. Key points and original sources are listed below.

• Three days after their season-opening loss to the San Francisco 49ers, the Los Angeles Rams took another hit on Sunday.S1

• Rams star defensive end Myles Garrett will undergo surgery on his injured left knee and likely will be placed on injured reserve, meaning he'll miss four games.S2

• Los Angeles Rams star Myles Garrett is expected to miss at least four games because of a knee injury that requires arthroscopic surgery, according to a person with knowledge of the edge rusher’s status.S3