Not needing surgery means next to nothing where the severity of an injury is concerned. It only means that team physicians didn't need to intervene in order for the patella to heal on its own. Four years ago, I tripped while walking, fell, and broke my left patella into two pieces. Literally into two pieces. There was a very small part of the bone that was still attached at the very top, and my orthopedic surgeon (well, one of two) put me on bed rest for six weeks hoping that the bone would heal on its own. It did. The fracture completely healed. I'm much older than Yelich is (just turned 50 a few weeks ago). I'm not a professional athlete like he is. But if I have to, I can run, and outside of a little soreness afterwords, I'm fine. But putting torque on the knee, while bearing weight, is incredibly painful. I can't do it. Running, and swinging a bat, impact a knee in two completely different ways. The physics are completely different. Mickey Mantle destroyed his right knee in the 1951 World Series. The orthopedic surgeon interviewed by Jane Leavy for her book on Mantle postulated that he tore his ACL, MCL and meniscus. The "Unhappy Triad" injury. Mantle played his entire career with a severely damaged knee. Only his neuromuscular genius helped to compensate for the injury. Mantle could still run like the wind, north south. He experienced no decrease to his burst speed. But he couldn't cut while running. At all. Different situation, clearly, but it goes to the discussion that this knee injury may not impact Christian's ability to run, but it may still be incredibly distracting, and limiting, where his swing mechanics are concerned. I am more concerned that it's a degenerative back condition that they're not talking about. There's no coming back to anything resembling an MVP form from that. Maybe he retires and the team collects insurance.