For one of the few times in his young life, Blue Jays third baseman Brett Lawrie is being cautious with his words. The normally brash, combative 23-year-old from Langley, B.C., has been notified he will be placed on the 15-day disabled list when the team heads north. Lawrie is nursing an injury to his left rib cage suffered on March 6 in a Team Canada warmup for the WBC. The DL can be backdated to March 22, but Lawrie will miss at least the first four games of the regular season. “I totally understand, because these things you can’t mess with and I understand that,” Lawrie said of the Jays’ decision to place him on the injured list. “Not that it hurts me, or bothers me, but it just doesn’t feel like my other side and that’s a problem. And if I can’t have it like my other side, I’m not going to go out there and go as hard as I go if I know that my body can’t withhold that.” Recall that last year, Lawrie was on the DL for 32 days with a strained right oblique. He had tried to play through that pain and made it worse until finally he missed over a month. Lawrie has insisted this is not as severe as last year’s injury and, besides, it’s on the other side. Still, he is trying to be mature about it, slow himself down. That wouldn’t have happened before. “It was a lot different, it was in a different spot and it was a lot deeper,” Lawrie explained of last year’s oblique. Lawrie will remain in Florida when the team heads north, but at least there was some good news in camp for one player. Catcher J.P. Arencibia learned he will indeed be in the lineup on opening day as the Jays have moved away from the concept of a personal catcher for R.A. Dickey. Arencibia had expressed disappointment about not playing on the opener of a season in which the Jays are expected to contend.