Dickey Wants To Start

I'm not sure when LaRussa is announcing who's starting for the NL on Tuesday, but RA Dickey wants to pitch:

Dickey, who completed the first half tied for the National League lead in wins with 12 and fifth in ERA at 2.40, remains hopeful All-Star manager Tony La Russa will select him as the NL's starting pitcher.
"Look, I want to start the game. Of course I do," said Dickey, who had a 42 2/3-inning scoreless streak during the first half. "I think any competitor would like to."
Dickey said it "logically" would be beneficial for him to open the game with Posey so the San Francisco Giants catcher would have extra time to get acquainted with the knuckleball.
With Yadier Molina withdrawing from the game due to a bereavement leave, and with only two catchers currently on the NL squad, Dickey's only other opportunity for extra work with the catcher who will receive his knuckleballs would be to simultaneously enter the game with the Philadelphia Phillies' Ruiz.
"I think you have a better shot starting the game, because you get to go through the whole workout routine, the whole warm-up routine, the pregame bullpen -- all that -- before you ever go into the game," said Dickey, a first-time All-Star at age 37. "If I'm brought into the game -- because you only have two catchers now, and Buster Posey hasn't seen me at all -- and all of a sudden here he is with seven warm-up pitches, that's a whole different animal."
Regardless, Dickey is thankful that it seems he will be used in the game. Past knuckleballers have gone unused out of concern for how an unfamiliar catcher might struggle with them.

He's earned it.  If the NL has four or five passed balls, that just comes with the territory.  Winning home field advantage shouldn't matter much to LaRussa this year.