PHOENIX -- The paydays just keep on coming.

The Brewers on Friday finalized one-year contracts with reliever Carlos Villanueva and catcher Mike Rivera, leaving right-hander Yovani Gallardo as the only pre-arbitration player -- and the only member of the 40-man roster -- yet to reach terms for the upcoming season.

Gallardo, who turned 23 on Friday, remains Brewers property for at least the next five seasons, but for this season and next, the team essentially controls his salary. Teams and so-called "zero to three" players typically negotiate to create goodwill for future discussions during the player's arbitration seasons, but if they are unable to reach terms, the Brewers could renew Gallardo's salary at the salary of their choice beginning Monday.

Last season, Gallardo was limited to four regular-season starts and two games in the postseason because of knee injuries. But he's 9-5 with a 3.35 ERA in 24 Major League games, including 21 starts, and he could emerge this season as Milwaukee's top pitcher if he stays healthy.