Selected: Round 2, 42nd overall
Size: 6-5, 304
College highlights: Started 37 of 39 games at left tackle at Stanford before entering the NFL draft as an underclassman. ... Martin earned first-team All-American honors from the American Football Coaches Association in 2011 after being a first-team All-Pac-10 Conference choice as a sophomore in 2010.
Personal info: Majored in the Classics at Stanford. ... Is only 22 years old. ... Martin first committed to UCLA and was heavily pursued by Harvard, where the school's admissions office told his father that Jonathan had the chance to become the first fourth-generation African-American student at the Ivy League school.
How he fits in: The Dolphins have an opening at right tackle after 2011 starter Marc Colombo wasn't re-signed in free agency. Martin played left tackle at Stanford but making the switch shouldn't be a problem because of his intelligence and his athletic ability. Martin likely will compete with Lydon Murtha but figures to have the edge based on his potential.
What he said (about the possibility of lining up opposite Jake Long): "I'm so excited to play the opposite of him. He's going to be a Hall of Fame left tackle. He's some I've modeled my game after for years. I've been a fan. I'm excited to play. I'll play left (tackle), I'll play right, wherever the team needs me."
What Dolphins GM Jeff Ireland said: "This is a really smart young man here. He's a really high test scorer and terminology is going to be a bit different, but they ran a pretty complex pro-style scheme there, so the complexity of the terminology will not be an issue for him learning a new offense. It was a high-tempo offense in some cases, and he's used to playing with a very demanding quarterback position with Andrew (Luck) and they trusted him to protect Andrew for three years."