Matt Chapman came up last week and helped Oakland sweep the Yankees in his first four big-league games.
Now the rookie third baseman is dealing with a left knee infection and the A’s will not know when he’ll be back in action for at least 24 hours while they wait to see how the joint responds to antibiotics.
“We’ll keep him out of activity until we see how this thing responds.” trainer Nick Paparesta said, adding later, “Hopefully that’s all we need to do.”
Papresta said he has dealt with knee infections before, without being specific, and he mentioned that the last one he recalled required surgical intervention.