Pennsylvania State Police say MLB pitcher Felipe Vazquez suspected the victim in his child solicitation case was underage when he first met her ... but he had sex with her anyway.
TMZ Sports has obtained the police criminal complaint filed by the Penn. State Police in which troopers detail an interview with Vazquez on the morning of Sept. 17th, the days he was arrested.
When speaking with cops, the Pittsburgh Pirates pitcher says he initially refused to communicate with the girl "due to her age" ... noting, "she appeared to be 16 years of age or younger.