Andrus is currently signed through 2014, and the extension is for eight years beyond that, through 2022. But the extension includes a clause that allows Andrus to opt out of the contract after four years.
Both sides expect Andrus to opt out after 2018 and become a free agent at the age of 30, unless something catastrophic happens to derail his career. By opting out, that would put Andrus in position for one final big free-agent contract. A source said Boras does not "do 33-year-old free agents."
Andrus is signed for this season at $4.8 million and for 2014 at $6.475 million. Along with a signing bonus, Andrus would get four years of $15 million per season through 2018. In the unlikely event Andrus does not opt out of the contract, he would get another four years and approximately $60 million, along with a vesting option for a ninth season.
The Rangers also have second baseman Ian Kinsler signed through 2017 on a five-year, $75 million contract, with a club option for 2018. Third baseman Adrian Beltre is signed through 2015 with a voidable club option for 2016 if he fails to reach 1,200 plate appearances in 2014-15 or 600 plate appearances in 2015.
That means the Rangers have their top infielders locked up for three to five years at a time when their top prospect is Jurickson Profar, another middle infielder. Profar is playing shortstop for Triple-A Round Rock this season.
The Rangers still have a high regard for Profar, but they don't have to make a decision on his future any time soon. At some point, Texas could make a trade from a position of strength or could ask somebody to switch positions.
Andrus, who doesn't turn 25 until Aug. 26, is in his fifth year as the club's starting shortstop. He is a two-time All-Star who has never been on the disabled list and has averaged 150 games a season. He played in 158 games in 2012, when he hit .286 with 85 runs scored, 31 doubles, nine triples, three home runs, 62 RBIs and 21 stolen bases. He had a .349 on-base percentage and a .378 slugging percentage. He is also considered one of the best defensive shortstops in the game, although he has yet to win a Gold Glove Award.
The highest-paid shortstops in baseball based on average annual salary of their current contracts are Derek Jeter of the Yankees ($18 million per season), Jose Reyes of the Blue Jays ($17.6 million) and Troy Tulowitzki of the Rockies ($15.7 million). Andrus' extension at approximately $15 million per season would put him fourth on the list.