Back injury could send Dodgers' Gonzalez back to disabled list

Adrian Gonzalez could be headed back to the disabled list after he said his back “started locking up” on him over the weekend.

Gonzalez said he would undergo an MRI examination Monday. He said he is playing with a herniated disk.

“I know what I have,” he said. “We’ll see if it’s gotten any worse.”

He said he first felt discomfort Saturday and told manager Dave Roberts about it after three hitless at-bats Sunday. The Dodgers removed him from the game.

“I just told Doc, ‘I’m not helping the team right now,’ ” Gonzalez said.

Gonzalez, 35, played through the back injury as well as elbow, forearm and triceps injuries before going on the disabled list last month for the first time in his 14-year…