The Boston Celtics have a legitimate chance at capturing their 18th NBA title this year. Their roster is stacked with both talent and experience, and there are really no glaring weaknesses on the ballclub.
That being said, there are still teams the Celtics do not match up particularly well against. They may be better than said teams, but they may struggle to beat them because, let's face it, the game is all about matchups.
Of course, Boston isn't the only squad that could face problems against certain teams. Every ballclub has its kryptonite, and it's a matter of whether or not a team can overcome it that will determine whether or not it can win a title.
Here are five teams that could represent that potential "kryptonite" for the C's.