There were plenty of questions about the Red Sox on the mound entering this season.

They were just supposed to be about the bullpen, not the starting pitchers.

The Red Sox have been unable to find out much about their unproven relievers because their rotation has been the unit blowing games early, allowing 22 earned runs over 15 innings through a 1-3 start to the year.

“It starts with the rotation. If they can go six [innings], we can go from there,” manager Alex Cora told reporters Sunday after dropping the opening series to the Mariners. “The bullpen did an outstanding job. … If you told me coming into the series it was going to be this way, I’d say no chance. But it’s baseball.”

Chris Sale (3 IP, 7 ER), Nathan Eovaldi (5 IP, 6 ER), Eduardo Rodriguez (4 1/3 IP, 5 ER) and Rick Porcello (2 2/3 IP, 7 ER) were all tagged for six or more runs in their debuts, becoming the first Red Sox quartet to start the season in such dubious fashion since at least 1902, according to the Boston Globe. They combined to allow eight home runs to a Mariners lineup that was hardly projected to be a crushing one by any means.

Last year’s October hero, David Price, is tasked with stopping the bleeding Monday night against the A’s.

The Red Sox rotation had been sturdy on the way to the World Series title a year ago and combined to throw some heavy innings. Cora limited their workload in spring training — just as he did in 2018 — though it remains to be seen how quickly they can get back to form.

“I didn’t rethink about it last year, you saw what happened. It was the same plan,” Cora said. “Whoever’s doubting us [after] what we did last year. I mean this year? Check what happened last year.”