ARLINGTON -- The Rangers appear to have a set starting rotation and lineup going into Spring Training, leaving unfinished the usual business of setting the bench and the bullpen. But there are still some unknowns when attempting to predict Texas' 25-man roster for Opening Day.Catcher (2):Jeff Mathis, Isiah Kiner-Falefa Mathis

ARLINGTON -- The Rangers appear to have a set starting rotation and lineup going into Spring Training, leaving unfinished the usual business of setting the bench and the bullpen. But there are still some unknowns when attempting to predict Texas' 25-man roster for Opening Day.

Catcher (2): Jeff Mathis , Isiah Kiner-Falefa

Mathis is a 14-year veteran with a sterling reputation for defense and working with pitchers. He will be the starter and Kiner-Falefa, coming off his rookie season, will be his apprentice. Veteran Jett Bandy and rookie Jose Trevino will be the next options.

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First base (1): Ronald Guzmán

The Rangers have other options at first base, but the plan now is to give Guzman every chance to secure this spot now and for the future

Second base (1): Rougned Odor

Odor is signed for four more years with a club option for 2023. The Rangers are still looking for that breakout season from him.

Third base (1): Asdrúbal Cabrera

Cabrera is a switch-hitter. His numbers were better from the left side last season, but they have been pretty even over the course of his career.

Shortstop (1): Elvis Andrus

Andrus is entering his 11th season with Texas. He is signed for four more years, but he has an opt-out clause after this season.

Outfield (6): Joey Gallo , Delino DeShields , Nomar Mazara , Shin-Soo Choo , Willie Calhoun , Hunter Pence

It may be hard to keep both Pence and Calhoun on the bench if the Rangers need a utility middle infielder or decide to carry eight relievers. Choo will get most of his time at DH. DeShields still has to win the center-field job because Carlos Tocci will be in camp.

Utility player (1): Matt Davidson

Davidson can play first and third base, but he has to beat out Patrick Wisdom . Neither can play shortstop or second, but the Rangers can move Cabrera to middle infield if needed. Davidson will also be given a chance to pitch.

Starting pitchers (5): Mike Minor , Lance Lynn , Drew Smyly , Edinson Vólquez , Shelby Miller

Smyly, Volquez and Miller are still unknowns because they are all coming back from Tommy John elbow reconstruction surgery. That's why the Rangers signed Jason Hammel and will also look at Adrian Sampson , Yohander Méndez and Ariel Jurado .

Relief pitchers (7): José Leclerc , Chris Martin , Shawn Kelley , Zach McAllister , Jesse Chavez , Jeffrey Springs , Connor Sadzeck

The Rangers will consider an eight-man bullpen, which could open up a spot for another left-hander. Sadzeck is out of options and still has to win a job. The other left-hander to watch is Kyle Bird .

• Texas has high hopes for quartet of lefty RPs

The Rangers will have seven of nine starters back from last year's team, missing only catcher Robinson Chirinos and third baseman Adrian Beltre. But four of their five starting pitchers will be new with the exception of Mike Minor .

CATCHERS

Jeff Mathis

Isiah Kiner-Falefa

INFIELDERS

Ronald Guzman

Rougned Odor

Elvis Andrus

Asdrubal Cabrera

OUTFIELDERS

Joey Gallo

Delino DeShields

Nomar Mazara

Willie Calhoun

Shin-Soo Choo

Hunter Pence

UTILITY PLAYERS

Matt Davidson

STARTING PITCHERS

Mike Minor

Lance Lynn

Drew Smyly

Edinson Volquez

Shelby Miller

RELIEF PITCHERS

Jose Leclerc

Shawn Kelley

Jesse Chavez

Chris Martin

Zach McAllister

Jeffrey Springs

Connor Sadzeck

T.R. Sullivan has covered the Rangers since 1989, and for MLB.com since 2006. Follow him on Twitter @Sullivan_Ranger and listen to his podcast.