The second of ESPN's two NFL Draft experts released his first mock draft, and Mel Kiper agreed with his colleague Todd McShay on the first overall pick.

Kiper and McShay both project Ohio State defensive end Joey Bosa going first overall to the Tennessee Titans. While both experts are expected to release numerous editions of their mock drafts, Bosa is a safe bet for now as he is widely considered to be the best prospect available.

However, a popular alternative is for the Titans to fill a more glaring need with Ole Miss offensive tackle Laremy Tunsil going first overall. Bleacher Report, SB Nation, and numerous other sports news outlets have predicted this pick because Tunsil may well be head and shoulders above the other offensive linemen in the class.

Kiper also agreed with McShay about what position the Cleveland Browns would take second overall, only he projected Cal quarterback Jared Goff instead of Memphis QB Paxton Lynch. Either way, both expect the Browns to draft yet another passer, heralding the end of the brief Johnny Manziel era in Cleveland.

Kiper's mock draft also came after Notre Dame linebacker Jaylon Smith tore his ACL and MCL on the final game of the college football season. McShay projected Smith going sixth overall to the Dallas Cowboys, whereas Kiper predicted he would fall to the New York Jets 20th overall.

Another major drop Kiper predicted was Ole Miss defensive tackle Robert Nkemdiche, who was charged with marijuana possession. McShay predicted he would taken third overall by the San Diego Chargers, whereas Kiper predicted he would go 13th overall to the Philadelphia Eagles.

Nkemdiche may wind up being one of the biggest draft mysteries because he is rated as highly as Bosa and has all the physical tools and attributes a team could want from a defensive lineman. But some scouts say Nkemdiche's motor does not run as high as Bosa's and his marijuana charge could give teams just enough doubt to pass on him.