Aldon Smith is making progress in his treatment for alcohol abuse, according to comments on Sunday from Jim Harbaugh.

The San Francisco 49ers have a 4-0 record since Smith entered treatment.

Smith was voted MVP of the 49ers in 2012 with 17.5 sacks.

Harbaugh is hopeful that Smith can return to the 49ers this season, though he could also face a league suspension.