The Yankees’ Mariano Rivera is writing an autobiography. No word on whether he’ll open with the final chapter.

Little, Brown and Co. said Monday it will publish The Closer next spring in English, Spanish and audio editions. A children’s edition will follow that autumn.

The career saves leader, who turns 44 in November, said he is retiring this fall following his 19th season with the New York Yankees.

Said the 12-time All-Star: “Now is the time for me to finally tell my full story, of where I came from and what my game, my family, and my faith have meant to me every day.”

Umpire on the mend

Umpire Brian O’Nora is recovering from an intestinal tear that forced him to make a sudden exit at a game last week.

Major League Baseball said Monday that there is no timetable yet for his return.

The 50-year-old O’Nora was feeling ill before Friday night’s game in New York between Philadelphia and the Mets. He was the plate umpire and quickly left the field during the bottom of the first inning, hurrying through the Mets’ dugout. The game was delayed 9 minutes and resumed with three umpires.

O’Nora left Citi Field and went to a hospital to be examined.

Around the bases

Kevin Youkilis was out of the New York Yankees’ lineup for the eighth time in nine games because of a bad back and he could be headed to the disabled list. … New York Mets third baseman David Wright was held out of the starting lineup at Miami because of a stiff neck, and said he hoped to miss only one game. … Making a move to shore up a shaky bullpen, the St. Louis Cardinals demoted struggling left-handed reliever Marc Rzepczynski to the minor leagues. … The Seattle Mariners activated outfielder Michael Saunders from the 15-day disabled list and optioned outfielder Carlos Peguero to Triple-A Tacoma.