SCOTTSDALE, Ariz. (AP) — San Francisco Giants right-hander Ryan Vogelsong strained his back earlier this month while lifting weights and said Sunday he will miss at least the first 10 days of spring training workouts while he recovers.The pitcher realizes it’s worth being cautious at this stage so that he’s healthy for the long haul.“It’s not too bad but we want to make sure we’re cautious,” Vogelsong said before Giants pitchers and catchers went through their first workout at Scottsdale Stadium. “I’d say probably, cautious side, 10 days maybe just to make sure I’m feeling good and don’t go out there and try to throw and tweak it again and come back in here. We’re just going to go really conservative right now.”Vogelsong, who became an unlikely All-Star last year in a comeback season, said he was squatting on a balance ball with 70-pound dumbbells — weights he had used all winter — on Feb. 7 when he got hurt.“Just a regular workout, trying to do a little bit too much weight wise,” he said.