The best left winger currently in the world by far is Cristiano Ronaldo, scoring a tremendous amount of goals for both club and country as well as picking up the Ballon D'Or in 2008 and 2013 to add to vast array of individual honours. Players that come close include Franck Ribery and Marco Reus, but they aren't on Ronaldo's level.
Chat with our AI personalities
One name that sounds out is the Welsh winger Ryan Giggs.
Edit: Malouda, Bale and Ribery are also very good left wingers.
Well in defense they protect the people from going to the goal.
And in forward they try to make goal and they pass the ball.