The LA Galaxy striker revealed that he suggested four years ago to his former club Tottenham that they should buy Hendrick, but Spurs chose to ignore his advice.
He said: "I've watched most games and I can't see anyone better, apart from Andres Iniesta maybe, people like that, in terms of controlling the game.
"He's been getting up and down, getting his tackles in, keeping his composure and also trying to score goals for the team. He's been fantastic.
"He's been a massive plus for us. How high a level could he play at? I told Tottenham to buy him four years ago. They weren't listening."