lib/football_ruby/client.rb
def fixture(id, opts={})
      raise IdMissingError, 'missing id' if id.nil?

      head2head = opts[:head2head]

      uri = "fixtures/#{id}/"
      url = head2head.nil? ? uri : "#{uri}?head2head=#{head2head}"

      json_response get(url)
    end
def fixture(id, opts={})
      raise IdMissingError, 'missing id' if id.nil?

      head2head = opts[:head2head]

      uri = "fixtures/#{id}/"
      url = head2head.nil? ? uri : "#{uri}?head2head=#{head2head}"

      json_response get(url)
    end
Show one fixture.
 Filters:

 head2head=/\d+/