Orioles designated hitter Wilson Betemit hobbled into team’s clubhouse Tuesday morning on crutches with his right leg in a bulky brace. A day after falling to the ground on the base paths during a Grapefruit League game, Betemit said he’s been told that the Grade 2/3 posterior cruciate ligament in his right knee will keep him out for at least six to eight weeks. “I feel really heavy today, like [I weigh] 300 pounds,” Betemit said. “But lets see what happens with my rehab in a couple weeks.” The switch-hitting Betemit was slated to be the team’s regular left-handed designated hitter against – he compiled a .302/.357/.502 while hitting 10 homers in 255 at bats against right-handed pitching. The good news for the Orioles is that Betemit had been told that he can rehab the injury without needing surgery. “They’ve told me just do rehab, do some ice and some treatment over there and see what happens in six to eight weeks,” Betemit said. In the fifth inning of Monday’s 12-9 Orioles win over the Red Sox, Betemit was going on a one-out, full-count pitch from first to second when his knee gave and his fell to the ground in pain. When the injury first occurred, Betemit believed it was worse. “Oh yeah,” Betemit said. “It felt like my leg and bone, I broke everything. And then after that after the MRI they told me it was the ligament in the back. They’re connected to my bone, but everything has stretched too much, that’s why I have to wear this [brace] so they can connect them back.” Betemit decided against play winter ball this offseason to he would concentrate on working out for 2013, spending a lot of time working out at the Orioles’ complex in the Dominican.