When talking about someone who's never afraid to get rough and tough with opponents, there's no need to look further than Boston Celtics guard Marcus Smart.

Smart is as gritty as they come. The Celtics feed off his winning plays, those that do not manifest in the boxscore but has as much impact — maybe even more. He's such a fine weapon for head coach Brad Stevens with his ability to defend up to four positions inside the court.

Heading into a do-or-die Game 7 agains the LeBron James-led Cleveland Cavaliers, Smart knows what to expect when the ball tips off, per ESPN's Chris Forsberg.

“It's about just winning the game now. It's not going to be pretty. You got to be able to get down and get dirty. You can't go out and try to look pretty. You have to be ready for a dogfight.”

“We got to be ready to come up with our nose bloodied, we got to be ready to come out with our mouth bloodied, we have to come out ready to fight.”

After six games, Smart has proven that he's not intimidated by James. He's even welcoming the challenge of guarding the person dubbed by Stevens as the game's best player.

Boston's backcourt enforcer is enjoying a solid conference finals series with averages of 9.7 points, 3.3 rebounds, 6.3 assists, and 1.8 steals. He has often become the culprit behind the fans' uproar inside TD Garden with his hustle and timely offensive contribution.