Clayton was selected with the 186th overall selection out of Kansas State.
The following is current status of the 49ers' draft selections so far.
SIGNED:
1. (28) OT Joe Staley, Central Michigan
4. (104) DE Jay Moore, Nebraska
4. (135) DT Joe Cohen, Florida
5. (147) CB Tarell Brown, Texas
6. (186) RB Thomas Claytona , Kansas St.
UNSIGNED:
1. (11) LB Patrick Willis, Mississippi
3. (76) WR Jason Hill, Washington State
3. (97) DE Ray McDonald, Florida
4. (126) S Dashon Goldson, Washington