Vizcaíno, 28, was placed on the 10-day injured list April 14, retroactive to April 11, with inflammation in his right shoulder. He appeared in four games this season, allowing one run, which was earned, in four innings.
“He’s decided the best thing for him is to get it cleaned up and get it ready for next spring,” general manager Alex Anthopoulos said. “Player’s choice, we obviously respect it. Tough loss for us, but we move forward.”