Golden State Warriors power forward Draymond Green is renowned for being one of the most outspoken players in the league and a notorious trash-talker.
The 26-year-old is willing to do or say anything to gain a psychological advantage on his opponents at all times and has gotten under people's skin on countless occasions on the court.
According to a poll conducted by the Los Angeles Times, in which 24 NBA coaches, assistants, and players took part, Green was voted as the king of trash-talking in the NBA.
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The All-Star's approach, however, doesn't work on all players, particularly the greatest power forward of all-time Tim Duncan.
The Warriors star admitted that he once tried to talk trash to the legendary San Antonio Spurs big man but it didn't have the desired effect.
The two players are polar opposites on the hardwood as Green takes pride in being vocal on the floor, whereas Duncan says very little.
In a playoff diary entry for ESPN's The Undefeated, Draymond recalled the one and only time he tried to engage in a spot of trash-talking with the Big Fundamental:
"I do have a Tim Duncan story. My rookie year I kind of talked junk to everybody. In the middle of the game I started talking to Tim, and I had already got into it with somebody on their team. I don't remember who it was. But I started talking to Tim and he kind of just stared at me. I just kept talking junk to him and he kept staring at me.
"At that point I realised during the rest of my career that I might as well not talk to him. Either, one, he is not going to talk back because he has no respect for me. Or, two, he is not going to talk back because that is who he is. Or, three, both. I figured then that was the last time I would talk junk to Tim. And that was the last time."
Not everybody is as reserved as Duncan, who hardly lets his guard down in any situation and Green definitely did the right thing in pursuing other targets for his verbal taunts.
The pair were expected to do battle in the Western Conference Finals after their respective teams ended the regular season as the top two in the west, but the Spurs were eliminated from the postseason by the Oklahoma City Thunder.
It may also be the last time the duo square off as Duncan - who turned 40 in April - is considering retirement this summer.
For Green, though, OKC lie in wait as he seeks to win back-to-back championships for the Bay Area franchise and game one of an eagerly anticipated series takes place at the Oracle Arena tonight.