The 49ers and every other NFL are allowed to host up to 30 college players in the run-up to the draft. A big chunk of those visits are taking place today and Tuesday at the team's facility.
One of the visitors is Louisville inside linebacker Preston Brown, who led the Cardinals in tackles last season. At 6-1, 251 pounds, Brown is slightly bigger than the 49ers' starting inside linebackers, Patrick Willis and NaVorro Bowman, were coming out of college, but he's been highly productive and has the long arms - 33 ½ inches - and aggressive style general manager Trent Baalke likes to see in prospects.
Brown had 14 tackles for loss last season and five sacks. He also returned a fumble 48 yards for a touchdown against Memphis.
Bowman, of course, is not expected to be on the field for the first half of the season due to his Jan. 19 ACL injury. The 49ers are seeking a replacement. They could turn to veteran Michael Wilhoite, who started two games for Willis in 2013. They could tap Nick Moody, a sixth-round pick in 2013. Or they could find an understudy in the draft in which the 49ers have 11 picks. Brown is considered a third-day option.
The 49ers had wanted Oklahoma cornerback Aaron Colvin to visit today and tomorrow but he had a previous visit scheduled and will make the trip later this week.
ILB Preston Brown
WR Martavis Bryant, Clemson
RB Storm Johnson, Central Florida
OLB Demarcus Lawrence, Boise State (next week)
OL Matt Patchan, Boston College
WR Albert Wilson, Georgia State
-- Matt Barrows