The injury first occurred in the bottom of the third inning, when Turner fouled a ball off his left kneecap, and collapsed to the ground. After a brief delay, Turner stayed in the game and flied out to right field in the first at-bat.
But in the bottom of the fourth inning, Ender Inciarte singled to left field, out of the reach of Turner, who felt more pain when he dove for the ball. Three batters later, Turner was removed from the game, replaced at third base by Alberto Callaspo.
"It wasn't too bad after [the foul ball]. The next play, out on defense, the dive just made it even worse. I'm not sure which one was worse for me," Turner said. "As time goes on, those things tighten up more and more. It was getting pretty uncomfortable. I didn't want to be able to not get to a ball and cost Mike Bolsinger some runs."
During the game, X-rays of Turner's knee were negative, showing no fractures.
"We're hoping just a bruise," manager Don Mattingly said. "We'll find out how bad and what the swelling is tomorrow."
The Dodgers just got an infielder back after a left knee injury, with Howie Kendrick going 3-for-4 on Monday in his first start in five games after jamming his knee in Colorado. He missed three full games, using a combination of ice and rest to get better.
Turner, who was 1-for-2 and scored the Dodgers' first run on Monday, has started 15 of the last 19 games. He said he iced his knee three times in the clubhouse after leaving the game, and will ice his knee at home Monday night.
"I'll try to do as much as I can tomorrow, and see where we're at," Turner said.
The Dodgers have two more games with the Diamondbacks before a Thursday off day this week.