" Once again, there are legitimate concerns about Kevin Durant as the start of another NBA season nears.

And, again, he brought them on himself.

With training camp scheduled to start Friday, the number one question for the Oklahoma City Thunder star will be what impact will yet another hectic summer schedule have on the two-time scoring champ?

It was all fun and games watching Durant dazzle crowds from coast to coast this offseason when he played in nearly every pro-am and charity game he got invited to. But there's no telling how much of a toll that taxing tour took. And for a franchise that will be widely expected to compete for the championship this season, the Thunder absolutely cannot afford for its leader to be fatigued mentally or physically in a shortened 66-game season.

In the past, Durant has blown off concerns about how a heavy workload affects his condition. He's always reasoned that he is a 20-something who just loves playing."