Joey Votto is baseball's newest $200 million first baseman.

The Cincinnati Reds slugger on Monday agreed to a 10-year, $225 million contract extension, according to a person familiar with the deal but not authorized to speak publicly about them because the deal is not finalized. Votto's extension ties him to the Reds through 2023 and continues a wild run of baseball spending.

In agreeing to the fourth-largest deal in baseball history, Votto became the third first baseman in four months to top the $200 million mark. Albert Pujols agreed to a 10-year, $240 million contract with the Los Angeles Angels in January, and Prince Fielder followed with a nine-year, $213 million pact with the Detroit Tigers in January. Before this off-season, only Alex Rodriguez, whose current 10-year deal is worth $277 million, had cracked the $200 million barrier.

Earlier Monday, the San Francisco Giants signed Matt Cain to an extension that guarantees him at least an additional $112.5 million.

But in beating a Monday night deadline that Votto set with the Reds to reach an extension before opening day, Votto became the rare small-market star who will stay with the club that originally drafted him.

And he will receive a full no-trade clause as part of the deal, as well, according to the person with knowledge of the contract.

Votto's deal will take effect after the final two years on his current three-year, $38 million deal expire. He'll make $9.5 million this season and $17 million in 2014.