The Red Sox were very polite about yesterday’s offensive explosion.

Balls flew out of the park, they said. With the Rogers Centre full, the ball carries in the humidity, they said. It was a great day to hit, they said.

Unsaid? Why none of the above applied to Jon Lester.

While the Red Sox were teeing off on 2012 NL Cy Young Award winner R.A. Dickey and a host of relievers to the tune of six homers in a 13-0 victory, the Blue Jays had no answer whatsoever for Lester.

Catcher Jarrod Saltalamacchia said it’s the best he has ever seen Lester throw, and it certainly bodes well for the future. Lester blanked the Blue Jays on five hits over seven innings, striking out six, walking none, and throwing only 100 pitches.

Were the game even remotely close, he probably would’ve had a shot at his third career shutout. As it is, no one was complaining.

“He’s definitely a different guy from what I saw from last year,” Saltalamacchia said. “Last year he was fighting himself a little bit. He wasn’t getting that downward angle he’s getting right now.

“He’s just a completely different pitcher and it’s impressive to see.”

One start after beating the Yankees behind his fastball and cutter almost exclusively, yesterday Lester had far better command of his curveball and changeup.

“The cutter has tight spin and has some quick cut to it,” Saltalamacchia said. “The curveball has become better because of it. And the changeup is one of his best secondary pitches and he doesn’t have to throw it too often.”

For Lester, the start to this year couldn’t be any different than last year, when he only received three runs of support in his first two starts (losses of 3-2 and 3-1). Yesterday he already had five runs to work with before the Red Sox made their first out.