. >> reporter: cbs sports analyst boomer esiason is a former n.f.l..v.p. >> they would have a tough time, i think, signing somebody who protested the american flag and the national anthem. >> reporter: already this pre- season, protests have continued on n.f.l. sidelines, and for the first time, some white players are standing and kneeling alongside their teammates. 70% of n.f.l. players are african american. many see a racial injustice with kaepernick. to seattle defensive back richard sherman, the league's message is, "boy, stay in your place." the eagles' malcolm jenkins called teams "cowards." dr. harry edwards, a kaepernick adviser, agrees. >> you have people who came back after being associated with drugs, rape charges, and so forth, but a man who violated no league rule, who committed no crime, cannot play in the league. that's not kaepernick's problem. that's the league's problem. >> reporter: n.f.l. commissioner roger goodell denies the quarterback is being blackballed. oode >> reporter: kaepernick's protests clearly offended many in the n.f.