Burlington rallied with three runs in the bottom of the 6th inning to turn a 4-2 deficit into a 5-4 victory to complete a weekend sweep of the Wisconsin TimberRattlers in Burlington, Iowa.  Wisconsin, the Midwest League's Western Division first half champion, is off to an 0-3 start in the second half.  Chad Pierce took the loss for the 'Rattlers.   Lance Roenicke, the son of Brewers manager Ron Roenicke, went two for four with a run scored for Wisconsin.   The TimberRattlers return home to face the Quad Cities River Bandits at Time Warner Cable Field at 7:05 PM Monday.