He lost about a full mile per hour between his first and sixth innings last season , and he also throws one of two pitches nine out of ten times .
At the nexus of both of these effects is Nationals righty Joe Ross .
Joe Ross lost about a full mile per hour between Joe Ross ' first and sixth innings last season , and he also throws one of two pitches nine out of ten times .
At the nexus of both of these effects is Nationals righty Joe Ross .