It will be a day of firsts this afternoon at Citi Field as Nelson Figueroa gets his first start in place of Mike Pelfrey and Fernando Tatis (pictured) gets his first start at second base when the Mets take on the Brewers in the finale of a three-game set. Figueroa was called up Saturday because the Mets want Pelfrey to sit out at least one start to rest the tendinitis in his right forearm. Tatis, meanwhile, is being brought out of a deep freeze to give him some at-bats (finally) and give Luis Castillo a rest.

Jerry Manuel also is giving Gary Sheffield another start in the outfield, this time in right in place of Ryan Church.

Here is the 6-5 Mets’ order for the 1:10 p.m. game:

Jose Reyes SS

Daniel Murphy LF

David Wright 3B

Carlos Delgado 1B

Carlos Beltran CF

Gary Sheffield RF

Fernando Tatis 2B

Omir Santos C

Nelson Figueroa RHP (debut)

Figueroa’s numbers against the Brewers’ hitters

The 3-8 Brewers will counter with:

Rickie Weeks 2B

Corey Hart RF

Ryan Braun LF

Prince Fielder 1B

J.J. Hardy SS

Mike Cameron CF

Bill Hall 3B

Jason Kendall C

Jeff Suppan RHP (0-2, 12.91)

Suppan’s numbers against the Mets’ hitters