USC lineman Damien Mama mulling his NFL options

USC offensive linemen Toa Lobendahn, right, and Damien Mama, left, hold down the left side during spring football practice, Tuesday, March 3, 2015, at USC. (Photo by Michael Owen Baker/SCNG, file)USC RB Justin Davis follows OL Damien Mama through the scrimmage line during practice, Thursday, August 21, 2014, at USC. (Photo by Michael Owen Baker/SCNG, file)LOS ANGELES >> USC left guard Damien Mama said he has submitted paperwork to the NFL Draft Advisory Board.

Mama, a junior, has the option to stay with the Trojans for his senior season or declare for the NFL draft. He has not yet received feedback that gives players approximate round estimations with three options: first round, second round…