The Mets have been hit hard by injuries, but not in their rotation.

Consider their starting pitcher options: the four currently in the group; David Peterson, who finds himself in a kind of rotation purgatory ; Sean Manaea; Tobias Myers (if stretched out); a just-optioned Christian Scott; and Jonah Tong, whose swing-and-miss stuff has begun to tick up with Triple-A Syracuse.

A team with many issues — including maximizing what is a talented crew of starting pitchers — does not have a depth issue.

Which is one more reason Kodai Senga needs to figure himself out quickly.

Kodai Senga reacts during his April 17 start for the Mets.…