Offensive tackle Jonathan Martin officially signed with the Dolphins. The four-year, $4.9875 million deal was originally reported May 22. The 42nd overall pick out of Stanford, Martin was a three-year starter and a finalist for the Lombardi Trophy last year. He is competing at right tackle with Lydon Murtha this offseason. He has never played right tackle but is considered a polished athlete capable of making the change. It'd be surprising if he struggled to acclimate to the NFL playbook, considering Martin picked Stanford over Harvard, the alma mater of his parents, grandparents and one of his great grandparents. There were teams that rated Martin as a first-round pick. However, others believed he didn't show the toughness or consistent strength to be drafted in the top 32 picks.