I believe he specifically said that he has been avoiding the weights this year due to that. He is focusing more on yoga and bodyweight exercises, such as this:
http://streamable.com/7gqo
edit: this article:
http://www.sportsnet.ca/baseball/mlb/toughness-a-distinct-element-of-this-years-blue-jays/
“Where I’ve really been able to improve my body management has been on the little pains and aches by incorporating new systems and methods to my training, like yoga, more kinetic based stuff, functional workouts,” says Bautista, “instead of just weightlifting, which in the off-season is great, because you can create power and endurance, but during the season it’s a little counterproductive because you can create tightness and soreness that might not let you be yourself 100 per cent on a daily basis. So I’ve been doing a lot of stretching, a lot of stress release on my muscles, stuff like that, and that’s allowed me to have my body feeling better on a day to day basis.”