Luis Severino blew through Triple-A and impressed in his first big league start last Wednesday against the Red Sox.

Tuesday night in Cleveland, the Yankees’ top pitching prospect will go for his initial victory in what has become a very tight AL East pennant race.

With a lot of hype smothering the first start, Severino was asked if there were fewer distractions leading to the second outing.

“It hasn’t been as bad. I don’t let outside stuff bother me,’’ Severino said through a translator. He allowed two runs (one earned) and two hits in five innings and took a 2-1 loss.

A video session Thursday provided the right-hander with evidence of mistakes made.

“The next day we watched video and saw the mistakes I made and moved on from that,’’ said Severino, who watched David Ortiz crush a home run on a 2-0 pitch. “I don’t feel like I made many mistakes, but there were a couple I could correct.’’

Joe Girardi believes for all young pitchers, the second start is somewhat different.

“I think it slows down for them, the requests slow down. Whenever you are making your first start in the big leagues, you get a ton of phone calls. People want to be a part of it,’’ Girardi said. “You are excited over it, reminiscing about all the things you been through to get there or how important it is. It’s a normal work week. Much more than the first start.’’

Since Severino is part of the rotation and needed down the stretch, Girardi was impressed with the 21-year-old’s performance against the Red Sox.

“I think what it shows you is that he is pretty mature for his age. That’s what you want, you want guys who can handle the situation and things that are thrown in front of them. That part of it I am really encouraged about. You are only going to find out when you go through it,’’ Girardi said.

The Yankees had gone 2,665 games without being shut out in consecutive games, which is the all-time record according to Elias Sports Bureau.

The last time they were blanked back-to-back was May 12-13, 1999 by the Angels.

After Monday’s day of rest the Yankees play 16 games in 16 days so look for Girardi to insert a sixth starter for one turn to keep the other five starters fresh.

“We will probably have to do it one time through,’’ Girardi explained. “When exactly, I can’t tell you.’’

Asked if that starter would come from the duo of Adam Warren and Bryan Mitchell, Girardi said, “That’s where it would have to come from.’’

Girardi used Mitchell as a sixth starter on Aug. 1 in Chicago. He gave up four runs and seven hits in four-plus innings of an 8-2 defeat.

Warren has made 14 starts this year but none since June 25 at Houston.

Sunday, Warren entered the game to start the sixth and gave up a single, walk and hit a batter. Girardi summoned Justin Wilson and the lefty escaped a bases-loaded, no-out jam without giving up a run.

Wilson has allowed two earned runs in the last 30 appearances and has an ERA of 0.68 (two runs in 26 ²/₃ innings).