PHOENIX -- D-backs right fielder Justin Upton left Sunday's 4-2 split-squad win over the A's in the fifth inning after jamming his right knee, but said he does not believe the injury is anything serious.
"It's going to be sore, but I don't think it's anything that's going to be too crazy," Upton said. "I didn't hear any cracks, pops or anything like that."
The injury occurred when Upton raced into the right-field corner to field Eric Sogard's triple in the bottom of the fifth.
"I was trying to cut the ball off, slipped a little and jammed my knee," Upton said.
Upton will be re-examined by the team's training staff on Monday.
"It's a scary thing," D-backs manager Kirk Gibson said of seeing his best offensive player limp off the field. "We don't want to lose him by any means."