PHILADELPHIA, PA (973espn.com) -- With one game left on the 2019 NBA Preseason schedule, the Philadelphia 76ers couldn't be more thrilled to get back to the court for the real deal next week when they open up the 2019-2020 NBA Season.

First, they have to work out all their kinks, though and get ready for the moment they open up the season. So far, the Sixers have been doing a great job closing out games with a victory. Heading into Tuesday night's matchup against the Detroit Pistons, the Sixers held an undefeated record of 3-0.

Before the matchup against Detroit, the Sixers prepared to enter the game shorthanded. With Ben Simmons recovering from a back strain, and Al Horford getting some rest, the Sixers were forced to start Matisse Thybulle and Furkan Korkomaz on Tuesday, which gave their starting lineup a new look.

Although the lineup looked different -- the results were the same. By the end of the night, the Sixers advanced to 4-0 on the preseason, defeating the Pistons with a final score of 106-86. While both sides of the ball were working well for the Sixers, their key focus of the offseason impressed both head coaches on the sidelines tonight -- the defense, of course.

"Defensively, we were excellent," Sixers' head coach Brett Brown said following the game. "I thought we rebounded well, and we had 15 blocked shots. I was happy with our bench maintaining a standard that we are proud of. I didn’t see the game get into a disorganized atmosphere. I was most pleased with our defense."

As we know, Brett Brown likes a good offensive showing, but he will praise an excellent defensive display even more, as he did on Tuesday night. However, Brown isn't the only one who took notice of the Sixers' dominance on defense. After watching his team fail to exceed 90 points, Pistons head coach Dwane Casey sent massive praise towards the Sixers defense as well.

"I think they’re really going to be one of the top defensive teams in the league," says Casey. "They did an excellent job of protecting the rim. They’ve got a nice defensive team. I’ve been very impressed with their defense."

So far, the Sixers are right where they want to be this preseason. That's dominating teams on the defensive side of the ball. As long as they are doing all they can to issue a tough task for the opposing offense, Brett Brown and his locker room will be happy moving forward this season.

Justin Grasso covers the Philadelphia 76ers for South Jersey's 97.3 ESPN. You can follow Justin on Twitter: @JGrasso_