NFL Network's Mike Garafolo confirmed Georgia linebacker Roquan Smith is visiting with the Niners today, per a source informed of the trip.
The meeting with the rangy Smith could be more vital as Foster's NFL future remains in doubt.
San Francisco selecting at No. 9 overall could be a sweet spot for linebackers, where Smith and fellow first-round talent Tremaine Edmunds (Virginia Tech) could come off the board.
Drafting a player like Smith could upgrade the 49ers second-level, especially if Foster is suspended or eventually released.
NFL.com draft analyst Lance Zierlein described Smith as a "speed demon who walks down backs looking to race him to the corner," good in coverage, and has been praised by coaches as a "tremendous leader."