Tacko Fall went undrafted in the 2019 NBA Draft, and while he put on a solid performance for the Boston Celtics in the Summer League, he knows very well that he has a lot to work on.

According to Tom Westerholm of Mass Live, the 7-foot-7 behemoth has spent the entire summer working on his game. Interestingly, one of the things that he's been focusing to improve is his pick and roll defense.

“That’s pretty much one of the biggest things I’ve worked on this summer,” Fall said of his pick and role defense. “All the coaches, especially Jerome, has done a pretty good job of breaking it down for me, and that’s really helped me a lot this summer so far.”

Fall signed an Exhibit 10 contract with the Celtics, which means that making the opening night roster will depend on how good he'll be in training camp and preseason. With that said, he needs to quickly learn and adapt to the team's style of play.

“Just making sure I learn everything about the team as much as possible. The way they play and what my role is going to be and doing it to the best of my ability,” the 23-year-old center added.

The Celtics are aiming to make a deep run in the playoffs, but with Enes Kanter as the only reliable center, the team will need their youngsters to improve as quickly as possible. Although they're not putting a lot of their hopes on Fall, Boston is still optimistic that the undrafted big man will be able to live up to the hype and prove everyone that he is one of the best rookies in this year's draft class.