There’s some intuitive patterns here: shortstops (SS) and center fielders (CF) are near the top, whereas left and right fielders (corner outfielders [cOF]) are towards the bottom. But there’s also some oddness; why are 3Bs the most injured players? The problem with this graph is that we didn’t adjust for age, which as we’ve already seen, is a significant covariate. For example, if pitchers are on average younger (which they are), they might not get injured as often in an absolute sense, yet they may get injured more often than expected, given their age–precisely what we’d like to know. Reframing the question thusly, we arrive at the following graph, charting age-conditioned risk of injury as a function of some positions (check out all positions here):