The Oakland Raiders and Kelechi Osemele have agreed in principle on a contract worth approximately $60 million over five years. Osemele becomes the highest paid guard in NFL history.

Osemele is considered one of the most physical and versatile offensive linemen in free agency at the age of 26. He boosted his value last season when he switched from left guard to left tackle for the last four games. Osemele was also the Ravens' starting right tackle in the Super Bowl in 2012.

A second-round pick in 2012, Osemele built a reputation as a mauling run-blocker and sound pass-protector. 

The Raiders have amongst the most cap space in the NFL entering the offseason.