MILWAUKEE -- What had seemed inevitable became official on Saturday: Willy Adames¡¯ tenure with the Brewers has come to an end.

After parts of four seasons in Milwaukee in which Adames hit 107 home runs and became a fan favorite, the 29-year-old shortstop agreed to a seven-year, $182 million contract with the San Francisco Giants, a source told MLB.com's Mark Feinsand. The Giants have not confirmed the deal, which is pending a physical exam.

It's the largest contract in Giants history, surpassing the $167 million deal in 2013 for Buster Posey, who was recently named the team's president of baseball operations.

Milwaukee officials, all the way up to principal owner Mark Attanasio, had been candid in recent months that they expected Adames to secure a contract beyond what the Brewers consider wise for their position, especially since they already have two potential shortstops in waiting in 26-year-old third baseman Joey Ortiz and 25-year-old, Gold Glove Award-winning second baseman Brice Turang. Ortiz has five years of club control remaining and Turang has four.

The Brewers fielded multiple offers for Adames last offseason and at this year¡¯s Trade Deadline but opted to keep him for his production -- he set career highs with 32 home runs, 112 RBIs and 21 stolen bases while starting all but one of the Brewers¡¯ 165 games in the regular season and postseason -- and for his influence in the clubhouse, most notable with 20-year-old phenom Jackson Chourio. The youngest player in MLB, Chourio finished third in NL Rookie of the Year Award balloting after overcoming a slow start with help from Adames, catcher William Contreras and others.

Part of that calculus was MLB¡¯s qualifying offer, which the Brewers extended Adames (as expected) and which Adames declined (as expected). Because of that, and because he¡¯s signing a contract with a new club in excess of $50 million, Milwaukee will be compensated with an extra selection in next year¡¯s Draft between the end of the first round and the start of Competitive Balance Round A.

That means Milwaukee will have two picks in quick succession, just beyond their regular first-round selection. The order for the competitive balance rounds were set this week and the Brewers have the very first pick in Competitive Balance Round A.

¡°[Adames] and Robin [Yount] are probably the two greatest shortstops to play here, and a cherished part of our history,¡± Attanasio said in September. ¡°We¡¯re appreciative of everything he has done here.¡±

The numbers support putting Adames in that exclusive company. His 15.7 FanGraphs WAR ranks second in Brewers history for a primary shortstop, trailing only Yount (66.5) and just ahead of former All-Star J.J. Hardy (11.0).