Thursday is shaping up to be quite the busy day in the sports world.

From Justine Henin making here return from an elbow injury, to Kevin Garnett leaving Wednesday's loss to the Detroit Pistons with a knee injury, to Brock Lesnar potentially leaving the UFC for the WWE, there's already plenty of news floating around the sports world. It can all get pretty overwhelming, and hard to follow.

That's where we come in. We're breaking down the biggest stories in the sports world today, and telling you everything you need to now to stay informed. So, let's get started, shall we?