The plan to promote Cam Schlittler for his major league starting debut against the Mariners at home has been revealed by sources familiar with the matter.

Although the decision has not been officially announced by the Yankees, their current intention is to give the opportunity to the 24-year-old Schlittler, who has showcased a strong performance with a 3.52 ERA in 15 games (14 starts) between Double- and Triple-A this season.

The Yanks are in at least a bit of a rotation crisis.

Max Fried, Carlos Rodon, and Will Warren have each completed all their starts this season, leaving only two spots in the starting lineup uncertain. The situation was exacerbated by news that Clarke Schmidt is likely to undergo Tommy John surgery, a procedure that will sideline him not only for the rest of this season but possibly for the entirety of the next season as well.

Marcus Stroman is back for a rotation that was never going to have Gerrit Cole this year after this spring’s Tommy John surgery. Allan Winans will not have been down the requisite 15 days to come back and make a spot start on Tuesday or Wednesday unless an injury strikes and he can be promoted for that reason.

The Yankees believe that Luis Gil (lat), who has yet to pitch this year but is on an injury rehab now, will be a factor to return to the rotation somewhere between the beginning of the second half and the July 31 trade deadline.

Ryan Yarbrough (oblique) is considered more of an August possibility. Acquiring a starter before the deadline has now become more pertinent.

 For now, though, Schlittler appears as if he will get a shot.

The 6-foot-6 righty, a seventh-round pick in 2022, impressed Yankee officials with his work and stuff in spring training. That continued into the season as he excelled at Double-A and was promoted to Triple-A in early June.

He pitched very well in his first four starts before his worst outing of the year last Wednesday — seven runs (six earned) in 2 1/2 innings against the Phillies’ affiliate.