Pineda, who has a 2014 ERA of 1.83 and a K/BB ratio of 5.00 after four starts, was ejected in the second inning. The suspension begins Thursday night.
According to multiple reports, Pineda will be paid during the suspension and will not be fined.
On Thursday, Pineda told reporters that would he not appeal the suspension. As Chad Jennings of the LoHud Yankees Blog points out, that means Pineda will miss only one regular turn in the rotation.