javascript - ES6 Class: access to 'this' with 'addEventListener' applied on method

In this es6 script, the click event don't works because sayHello method is called with this.elm (

) as this.

how to associate a event to a method without loose the scope?

class player{
  constructor (name) {
    this.name = name;
    this.elm = document.createElement('div');
    this.elm.addEventListener('click', this.sayHello);
  }
  sayHello() {
    console.log(this.name + ' say: "hello!"'); // 'undefined say 'hello!"';
  }
  kill() {

    console.log(`RIP ${this.name} :'(`); 
    this.elm.addClass('dead');
    this.elm.removeEventListener('click', this.sayHello);
  }
}