T-shirts have been printed!

“Slam Diego.”

And there’s a version showing Mount Crushmore — with the faces of Fernando Tatis Jr., Wil Myers, Manny Machado and Eric Hosmer superimposed on a certain monument.

The San Diego Padres are on a roll unlike any other in franchise history — actually, unlike any other in major league history. On Thursday, the Padres became the first team ever to hit a grand slam in four consecutive games. After the streak was snapped Friday (Hosmer grounded out in the Padres’ only at-bat with the bases loaded), Jake Cronenworth hit a grand slam Saturday, making the Padres the only team in history with five grand slams in a six-game span.

The Padres are getting on base and homering. They have 54 homers in 29 games to tie for the major league lead. And they have won six straight games.

Now comes an even bigger test. On Sunday afternoon