DAVIE, Fla. -

The Miami Dolphins acquired much-needed help for their offensive line by picking Tennessee tackle Ja'Wuan James with the 19th pick in the first round of the NFL draft Thursday.
    
The Dolphins badly need blockers, and opted for one even after four offensive linemen were taken among the first 16 picks. They passed on a chance to take 2012 Heisman Trophy winner Johnny Manziel.
    
The pick was the first by new Dolphins general manager Dennis Hickey. He replaced Jeff Ireland, who departed in part because of his lack of success in recent drafts.
    
James made 49 career starts, a Tennessee record for an offensive lineman.
    
The Dolphins gave up an NFL-worst 58 sacks last year, and four of the five starters from the offensive line have departed.