Ross Stripling's first season in San Francisco ain't off to the best start -- he revealed Monday he accidentally went through the team's picture day with food in his teeth!!!
The new Giants pitcher posed for the photos a couple days ago -- but when they came back this week ... he noticed something wasn't quite right with his pearly whites.
In between two of his top incisors -- there was something black wedged in ... and it didn't take him long to realize it was actually part of his lunch that day!