The Atlanta Braves are sitting atop the NL East, but the Philadelphia Phillies and Miami Marlins aren't far behind the Braves.With the Braves potentially at risk of losing their top spot in the division, they got some bad news on Saturday, as outfielder Mike Yastrzemski is now going to miss some time.As the Braves announced, Yastrzemski is headed to the injured list. But why? The $23 million Braves outfielder is hitting the IL due to an elbow issue.Why Mike Yastrzemski is hitting IL for Braves"The Braves today recalled RHP Owen Murphy to Atlanta and placed OF Mike Yastrzemski on the 10-day injured list with left elbow inflammation," the Braves announced Saturday.This is a big blow for the Braves, as Yastrzemski, the 35-year-old outfielder who is in year one of a two-year, $23 million deal