Kendrick Perkins might look like a pretty tough dude when he's running up and down the basketball court. But when he's off of it, he's every bit as vulnerable and emotional as the next man.

For proof of that, look no further than the comment that he left on a photo of Thunder players that was posted to Hasheem Thabeet's Instagram earlier this week. The photo featured Thabeet, Russell Westbrook, Serge Ibaka, Kevin Durant, and several of their Thunder teammates. But it did not feature Perkins, who was apparently not invited to be a part of whatever the guys were doing that day. And he let his feelings about it be known in a comment that he posted to Instagram:

Awwwwwww! How sad. Maybe next time, Perk.

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[via SB Nation]