Ok, ignoring the line editing, I'll take a conceptual approach. You need a singular focus here, instead of toggling between a half dozen potential themes. At different points in the story I thought it was about his brother, his stellar record, his career before UF. There are some good story lines you could take here, but it currently reads like a chronological wandering of his life, and the only impression one gets at the end is that he's a good tennis player with a couple things that set him apart.
You did a good job compiling information about him, reporting stuff beyond his tennis success. But to make a really compelling or interesting feature, you have to select what's most interesting about the person you're highlighting and explore that more deeply.
For instance, you open with the brother thing. From that opening, we get the impression that the "sad twist" of his ideal family support has left some kind of indelible impression on Levine. But then it jumps to his not having a loss and right into his history. If you run with the brother angle, show some scenes of the brothers interacting, ask some more probing questions of the Levine brothers and their parents...how it's affected his playing, how it's inspired him, whatever.
That way, readers are pulled in and held until the end. It sounds like you'll have more opportunities for more features, so try to implement some of that on the next one - definitely keep at it.
