NASHVILLE, Tenn. -- Coach Jim Harbaugh visited this weekend with Aldon Smith's mother, who traveled from Missouri to see the 49ers' 31-17 victory Sunday over the Tennessee Titans.
Smith,the 49ers all-Pro outside linebacker, has been in treatment for substance abuse since Sept. 23. He was arrested on DUI charges three days earlier.
"I hear things are going very well," Harbaugh said.
A source told CSNBayArea.com the 49ers could meet with Smith upon returning from London during the bye week. The 49ers left for London immediately after their victory over the Titans. The 49ers will play the Jacksonville Jaguars at Wembley Stadium on Oct. 27. After the bye week, the 49ers return to action Nov. 10 against the Carolina Panthers.
Smith must show "significant progress" to return to play this season, a source told CSNBayArea.com.
When asked about the bye-week timeline, Harbaugh said, "I'm not real knowledgeable on exactly when that's going to be, but I think that at some point in the next couple of weeks."
Harbaugh said he is "hopeful" Smith will be available for the 49ers this season.
"(But) I'm not the definitive source on any announcement there," Harbaugh said.