Casilla leaves workout with hamstring injury (plus video gallery)

SARASOTA, Fla. - Infielder Alexi Casilla left today's workout with tightness in his right hamstring. He walked off the field with head athletic trainer Richie Bancells. Casilla estimated that he could miss two or three days of workouts, which would include intrasquad games on Wednesday and Thursday. "I just felt my hamstring a little bit," he said. "We were taking grounders and there was a ground ball up the middle, and that's when I felt it. I could have kept going, but we're practicing right now. We're not playing any games yet. I've got to be ready to play in games." Nelson Cruz participated in outfield drills and took batting practice today. Ubaldo Jimenez and Suk-min Yoon threw their bullpen sessions side by side this morning. At one point, pitching coach Dave Wallace and bullpen coach Dom Chiti stood beside the plate with bats in hand and tracked pitches. Dylan Bundy had another flat-ground session, playing catch with Brady Anderson from 150 feet before moving back in to 90 and 60. He's nearing an extension to 180 feet. Brian Matusz said the wart on his left middle finger surfaced two days ago. "All of a sudden, I was standing out there doing PFPs and I looked down at my finger and went, 'Oh shoot, it's back again.' "It's the same exact wart that was there three years ago in the same exact spot. Heading back to the same exact doctor (in Philadelphia) at pretty much the same time of year and getting the same procedure done and hopefully have the same results." Matusz will have the laser procedure done Monday morning and return that night. "If it's anything like it was three years ago, I'll be able to come back and throw on Tuesday," he said. "The only time being missed is the actual day to go get the procedure done. "I don't know anything about warts or the reason they come back or what they're all about, but when this procedure was done three years ago, they said it'll take care of the wart now, but there's always potential that it can come back at a future date. This is the potential. It came back. "It'll blister up, but fortunately it's on the side of the pitching finger where it doesn't come into play, so therefore I shouldn't miss any time, like three years ago." Why go to Philadelphia? "Dr. (Steven) Greenbaum, the doctor who does the laser surgery, he's a doctor that the Orioles feel comfortable going to. He has a laser that's updated technology. It's where we went three years ago and we had 100 percent success with it, so why not do the same thing again? That's the protocol that we're taking." The procedure only takes a few minutes, simulating the feeling of a rubber band snapping against his finger. "It zaps the wart, basically kills it, and leaves a blister just from the actual light being shined," Matusz said. "The recovery time is however long it takes for the blister to go away." Matusz could continue throwing with the wart, "but it could potentially get bigger," he said. "This is a precautionary measure, so it doesn't expand and get bigger and come into play of being in the middle of the finger and become a factor later in the year. "If this thing were anywhere else on my body, it wouldn't be a story and we wouldn't be talking about it now." I told Matusz that if his wart were located on another body part, we wouldn't want to know about it. "Exactly," he said. "It's silly that we have to be here talking about this." Here's video from Tuesday: