Here are our selections for the 2015 ESPN.com All-Big 12 first team. We'll unveil our All-Big 12 second team on Thursday.

Oklahoma quarterback Baker Mayfield led a loaded Sooners offense to the Big 12 title with 42 total touchdowns. Alonzo Adams/AP

Offense

QB Baker Mayfield, Oklahoma: Mayfield piloted the Sooners to a Big 12 title and College Football Playoff bid with 3,809 total yards, 42 touchdowns and lots of memorable heroics.

RB DeAndre Washington, Texas Tech: The do-it-all senior back racked up a Big 12-best 1,759 yards from scrimmage and 16 scores.

RB Samaje Perine, Oklahoma: The Sooners’ bowling ball of a back shared carries and still managed to rumble for 1,291 rushing yards and 16 total TDs.

WR Corey Coleman, Baylor: A Biletnikoff Award finalist and one of the nation’s most freaky talents, Coleman led all FBS receivers with 20 TD catches.

WR Josh Doctson, TCU: Doctson finished No. 1 nationally in receiving yards per game (132.7) despite his wrist injury and broke most of TCU’s season and career receiving records.

WR Sterling Shepard, Oklahoma: Shepard will finish as inarguably the No. 2 receiver in school history after an impressive 1,200-yard, 11-touchdown senior season.

OT Spencer Drango, Baylor: The leader of the Big 12’s best offensive line is an Outland Trophy award finalist and could be an All-American for a second straight season.

OT Le'Raven Clark, Texas Tech: The giant mauler at left tackle was dominant once again this season and has never missed a start in 50 consecutive games.

OG Nila Kasitati, Oklahoma: One of the nation’s more underrated linemen helped OU average 300 rushing yards over its last seven games.

OG Blake Muir, Baylor: Muir developed into a powerful, reliable left guard who graded out as well as Drango throughout the season with 38 knockdown blocks.

C Tyler Orlosky, West Virginia: Orlosky broke out as WVU’s best, most consistent lineman and paved the way for the Big 12’s No. 2 rushing offense.

AP Jakeem Grant, Texas Tech: The 5-foot-6 menace put up more than 1,200 yards on offense, had nearly 1,000 yards on kickoff returns and scored TDs four different ways: receiving (7), rushing (2), kickoff return (2) and passing (1).

K Jaden Oberkrom, TCU: The best kicker in school history hit 17 of 21 field-goal attempts, was perfect from 50-plus yards and should break the Big 12 record for career field goals.

KR Morgan Burns, Kansas State: A true game-changer on special teams, Burns leads the nation in both kick return yardage (1,047) and kick return TDs (four).

Oklahoma State defensive end Emmanuel Ogbah recorded 13 sacks this season, good for fourth best in FBS. Brody Schmidt/AP

Defense

DE Emmanuel Ogbah, Oklahoma State: The Big 12’s premier pass-rusher ranks No. 4 in FBS in sacks with 13 and logged a league-high 17.5 tackles for loss.

DE Charles Tapper, Oklahoma: Tapper recorded seven sacks and four forced fumbles and was a monster for OU during the stretch run to a Big 12 title.

DT Andrew Billings, Baylor: Big 12 coaches say he’s the best nose tackle they’ve seen in a long, long time, and Billings lived up to the hype with 14 tackles for loss.

DT Hassan Ridgeway, Texas: He battled injuries early and late in the season but still caused problems, finishing with 3.5 sacks and a fumble return for a TD.

LB Eric Striker, Oklahoma: One of college football’s great leaders and characters was also a deadly edge rusher with 16 tackles behind the line (14 in Big 12 play) and 7.5 sacks.

LB Nick Kwiatkoski, West Virginia: The Mountaineers’ leading tackler for a third consecutive season also chipped in three INTs, three sacks and seven pass breakups.

LB Dominique Alexander, Oklahoma: He emerged as one of the league’s best all-around defenders and was a critical cog at inside linebacker with a team-high 91 stops.

CB Jordan Thomas, Oklahoma: Zack Sanchez gets more pub, but Thomas stepped up and showed star potential as a sophomore with five interceptions.

CB Daryl Worley, West Virginia: He had a few rough stretches in conference play but made big plays, too, including six INTs and 12 pass breakups.

S Derrick Kindred, TCU: His veteran leadership through all of the Frogs’ lineup changes proved just as valuable as his 79 tackles and two picks.

S Jordan Sterns, Oklahoma State: Sterns led a stout Oklahoma State defense with 103 tackles and nabbed two INTs, including the game-clincher at Iowa State.

P Nick O'Toole, West Virginia: He helped WVU flip field position with a Big 12-best average of 45.6 yards per punt, including 40 percent downed inside the 20.

PR KaVontae Turpin, TCU: The true freshman was one of Big 12’s fastest players, dazzled in space and averaged 10.6 yards per punt return, including a 49-yard TD.