Toronto Raptors guard Kyle Lowry, a centerpiece player on the defending NBA champions, has been ruled out for the remainder of Game 4 of the Raptors' first-round playoff series against the Brooklyn Nets. Lowry suffered a left ankle injury.

While the Raptors wait to see how severe Kyle Lowry's injury is, the immediate context of the injury contains a number of components.

The good news for the Raptors is that they are in command of their series against the Nets. Unlike a number of Western Conference teams battling key injuries, the Raptors don't need to worry about a star player's status in terms of escaping the first round. They will be in the second round; it's just a matter of when they will arrive. Will they be able to close out Brooklyn in four, or will they need a fifth game?

This is where the picture becomes more complicated for the Raptors, and potentially problematic if the Lowry injury is appreciably severe in nature: The Boston Celtics swept the Philadelphia 76ers in the first round. The Celtics are going to be fresh for a heavily anticipated Eastern Conference semifinal. The Raptors naturally need Lowry to be at his best for that series. They would have a chance without him, but their odds would certainly take a massive hit if they don't have their heartbeat, their spiritual warrior, on the floor in reasonably good shape.

Raptors fans are fond of saying, “Kyle Lowry over everything!,” a statement of Lowry's excellence as a player and his indomitable nature as an elite competitor, the heart and soul of a Toronto team which has risen to the NBA mountaintop.

The Raptors need Lowry on the floor, not merely providing leadership from the bench, against the Celtics.

Follow ClutchPoints on Twitter & Instagram, and like us on Facebook. We can also be found on Flipboard where you can subscribe and follow us. Get more on the Raptors and Nets.

All of our NBA content can be found on the NBA section of the ClutchPoints home page here. For all of our college basketball content, click here.