The Lehigh Valley IronPigs (54-50) and the Jacksonville Jumbo Shrimp (50-55) played game four of a six-game series on Friday night from 121 Financial Ballpark. Lehigh Valley starter David Buchanan (8-3, 4.66 ERA) was on the mound against Jacksonville’s Evan Fitterer (1-1, 5.40 ERA). At the top of the…