Heyward slumping, but still developing 

June, 11, 2010
06/11/10
2:53
PM ET
Just as one 20-year-old rookie outfielder, Mike Stanton, makes his big league debut this week, let's check in on another 20-year-old rookie outfielder who has been with his club since Opening Day.

Jason Heyward still has an OPS above .900 entering Friday's games despite an 8-for-41 stretch this month that has dropped his average 15 points to .272. In fact, he tied a major league record on June 4 by striking out five times in a nine-inning game. But considering the opposing pitchers in that game were Clayton Kershaw, Hong-Chih Kuo and Jonathan Broxton, there's not as much shame in that as it might seem on first glance.


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