c59bf121__NFL_Draft___The_Sideline_View__LZ_Says___
[No.] 19 [Name] Marcus Martin [School] Southern California [Pos.] C [Overall Grade] 5.04 [LZ Says...] 
Flexible bender with good quickness off of the snap. Has functional core strength but not a strong player. Too often will be looking side to side in pass protection with nobody to block when he could be helping guard to secure a block. Body control doesn't match your expectations. Can get to any run block asked of him and has enough leverage to anchor despite lack of weight room strength.
Offensive Line Grades - 2014 NFL Draft | The Sideline View
LZ Says...