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4/1/2013 1:12 A.M. ET

Andrus, Rangers reportedly near eight-year deal

HOUSTON -- The Rangers are working on a contract extension with shortstop Elvis Andrus that could be as long as eight years, a source said Sunday.

Ken Rosenthal of FOX Sports and MLB Network first reported that the deal was in the works. Rangers general manager Jon Daniels declined comment.

The deal, being worked out between the Rangers and agent Scott Boras, could be announced as soon as Andrus undergoes a physical. That most likely won't happen until the Rangers return to Arlington on Thursday.

The biggest question is the length of the deal. Eight years has been mentioned, but the deal is also expected to have clauses that would allow Andrus to get out of the contract earlier than that. The main thing is there have been serious discussions between the two sides

Andrus, 24, is in the second year of a three-year, $14.4 million contract that he signed on Feb. 7, 2012. That deal is through the 2014 season. Andrus can become a free agent after that season unless he agrees to this extension.

The Rangers have already signed second baseman Ian Kinsler through 2017 with an option for 2018. If the Rangers lock up Andrus, it would leave Jurickson Profar's future up in the air. Profar is playing shortstop at Triple-A Round Rock and is MLB.com's top-ranked prospect.

T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.