One of the biggest question marks for the Boston Celtics heading into the 2017-18 season has been how Jaylen Brown will handle sliding into the starting lineup at the two.

As a rookie last year, the notion of Brown playing shooting guard was never even a blip on the radar. On top of that, there are critics that inexplicably ​don't think Brown is that good, despite his promising start.

Brown continues to show how dangerous he can be at his new position. 

Brown isn't just locking down any guard, he closed the gap and went step for step with All-Star PG Kemba Walker, who is undeniably one of the most dangerous ball handlers in the league.

On the very next play, Brown showed that, just like he can switch up on bigger guys as well. From point guard to power forward, Brown goes swat city on PF Marvin Williams.

Flawless defense from 6-0 to 6-9 on back-to-back plays is no anomaly. Brown is going to do some big things at shooting guard on both ends of the floor.