[{"id":"20","name":"System Team"}]

public class Teams
{

    public int id { get; set; }
    public string name { get; set; }
    public IEnumerable<SelectListItem> names { get; set; }

    public string[] team { get; set; }
}
public ActionResult Teams()

var jsonString ="[{"id":"20","name":"System Team"}]";
                 JavaScriptSerializer javaScriptSerializer = new JavaScriptSerializer();
                 List<Teams> listTeams = (List<Teams>)javaScriptSerializer.Deserialize(jsonString,typeof(List<Teams>));

                foreach (Teams teams in listTeams)
                {
                    Response.Write("" + teams.name + "<br/>");
                }

@{
ViewBag.Title = "Teams";
}   @Html.DropDownList("names",null,"--Select Teams--")