Aaron Donald ended his holdout, reporting to the Los Angeles Rams and passing a physical.
Donald has been seeking a long-term contract as one of the NFL's best defensive players.
Donald will be on the active roster Sunday, and the Rams are seeking a roster exemption.
Tanzel Smart, a rookie sixth-round pick, is expected to take Donald's spot as the starting 3-technique lineman, lining up between the left guard and left tackle in base 3-4 sets.