ESPN: A Tale of Two Seasons for Dan Uggla

ESPN takes a close look at Dan Uggla's performance along with supporting heat maps:

When Uggla was going bad, he couldn’t make contact with sliders from right-handed pitchers. He only was putting about one-third of his swings in play. Now, he’s putting half of his swings against sliders from righties into play and doing major damage. When making contact with a slider from a right-handed pitcher during the streak, he’s 11-for-22 with five home runs. And to tie back to the previous note, four of those have come on sliders on the outer-third. 

Source: ESPN.com (Mark Simon & Katie Sharp)