But pen again ...

Relief the lone bright spot

They didn’t get much out of the starter, the third baseman and most of the lineup, but the new faces in the bullpen delivered the only positive vibe Monday, when the Yankees opened the season with a 61 loss to the Blue Jays at Yankee Stadium.

After Masahiro Tanaka placed the Yankees in a 50 ditch after four innings, the pen allowed one run and one hit across the final five frames.

Most impressive was righthander Chris Martin, who fanned Jose Bautista, Edwin Encarnacion and Josh Donaldson in the fifth.

“I know they are all tough hitters to face, and I wanted to attack and be aggressive,’’ said Martin, who was acquired from the Rockies for cash in January and is the second Yankees pitcher to whiff every batter he faced in his Yankees debut. Edwar Ramirez did it in 2007.

Chasen Shreve, who gave up a homer to rookie Devon Travis, followed Martin, before giving way to David Carpenter, Justin Wilson and Esmil Rogers, and only Wilson was shaky. He walked the bases loaded in the ninth but was rescued by Rogers, who caught Bautista looking for the final out. All but Rogers made their Yankees debut.

“I thought they had a pretty good day. I could have went to Esmil earlier, but I just thought I kind of spread it out through the bullpen,’’ Joe Girardi said. “I thought to get those guys in there, some new guys who haven’t pitched in Yankee Stadium, I thought they fared pretty well.’’

Alex Rodriguez batted seventh. Itwas the first time he hit that low during a regularseason game since hitting eighth for the Mariners in 1996. Of course, Joe Torre batted Rodriguez eighth against the Tigers in the 2006 postseason. Rodriguez went 1for2 with a walk.

Despite the loss, the Yankees are 296 in the last 35 games against the Blue Jays in The Bronx.

Brett Gardner’s homer in the sixth was the Yankees’ 100th Opening Day home run and the first since Raul Ibanez three years ago.

Thirteen Ks by the Yankees pitchers tied an Opening Day record for the club.

CC Sabathia has shifted two lockers to the left and took over Derek Jeter’s stall at the far end of the Yankees’ clubhouse.

Also on the move is Brian McCann, who went from the locker next to the entrance to David Robertson’s old digs on the left wall. Dellin Betances took over Sabathia’s old locker.

“Dellin wanted tomove down so I moved into Jeet’s locker,’’ Sabathia said. “It’s a good locker.’’