Billy Hamilton remains out of Reds’ lineup with concussion

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Billy Hamilton suffered what the Reds called a “mild concussion” while robbing Ryan Braun of a home run with a great catch Wednesday and the rookie center fielder remains out of the lineup for tonight’s game against the Pirates.

Yet another reason to stop referring to concussions as “mild.” No brain injury is mild and, as we’ve seen time and time again, no one has any real ability to predict how quickly an athlete will bounce back from one.

If he’s done for the season Hamilton would finish his rookie campaign hitting just .250 with a .295 on-base percentage and .355 slugging percentage in 152 games. His case for Rookie of the Year is built around his speed (56 steals, 23 caught stealing) and defense (18 runs above average according to Ultimate Zone Rating).