Scott Sizemore will have an MRI exam on his left knee Monday. Oakland thinks the knee is sprained. "We're holding out hope for good news," A's manager Bob Melvin said. "If ever there was a time to have (the injury), it's early in camp to be able to recover from that." Adam Rosales, Eric Sogard Wes Timmons and Josh Donaldson are expected to compete at third base in his absence. Depending on whether or not Sizemore's ligaments were torn, the recovery time could range anywhere from four to six weeks.