With the Dolphins ready to cut their ties with Rickey Williams they needed a backup for Ronnie Brown.  That’s why they selected Lorenzo Booker in the 3rd round.  Booker is on the small side at 5′10″, 188 pounds but he’s extremely fast as he runs a 4.4 40.  Booker was not a full-time back at Florida State so he should have a lot of tread left on his tires.  At Florida State, Booker played in 48 games (17 starts) and he carried the ball 497 times for 2,389 yards (4.8 ypc) with 15 TD runs.  He also caught 114 passes for 995 yards (8.7 avg) with 2 TD grabs.  Look for Booker to be a good third down back and maybe more for the Dolphins as he’s a tough back despite his size.