Texas A&M celebrates after defeating Missouri, 10-9, in the Big 12 baseball tournament Sunday in Oklahoma City.

Oklahoma City ? Andrew Collazo hit a game-ending homer into the left-field bleachers with two outs in the 10th inning Sunday, lifting Texas A&M to a 10-9 victory over Missouri and its second straight Big 12 tournament title.

Collazo pumped his fist as he rounded the bases following his first home run of the season and was mobbed as he jumped onto home plate with the winning run.

Collazo’s throwing error had opened the door for Missouri to take a 9-8 lead in the ninth inning, but the Aggies (42-18) tied it on pinch hitter Gregg Alcazar’s chop single with two outs in the ninth before winning it in the 10th.

It’s the second straight year Texas A&M won the title with a game-winning homer in the 10th. Brodie Greene provided the theatrics with a two-run shot in last year’s championship game.

The loss denied Missouri (27-32) a shot at making the NCAA Tournament field despite a losing record. The Tigers rebounded from a 1-8 start in league play to earn the last spot in the Big 12 tournament, then nearly became the first No. 8 seed to win it all.

Mizzou squandered an early 6-0 advantage before rallying for two runs to take a 9-8 lead.

Collazo threw wildly into right field on a potential double-play grounder to third, and Blake Brown followed with a run-scoring groundout to tie it at 8. Jesse Santo’s line-drive single to center provided the go-ahead run, but the Tigers couldn’t close it out.

Scott Arthur pinch-ran for Jacob House with two outs in the ninth and stole second before coming around to score on Alcazar’s high-bouncing base hit to left field.

Collazo then made up for his bad throw with a rare home run.

It ended a storybook run for Missouri, which beat top-seeded Texas twice to get to the title game — getting seven shutout innings from Kelly Fick in his first start since last year’s Big 12 tournament to advance Saturday night.