[Bluegrassplayer]

I didn't read his raise so much as 2.8x raise, it's just to make the hero think about whether or not he wants to put 10 dollars into the pot. I think he was expecting the hero to make a continuation bet and then bet with his top pair personally. He knew if he made a bet now he wouldn't get any money, but if he checked it was the possible that the preflop raiser puts some money in with air and then drops the hand.