sentences:  Zink was signed as an undrafted free agent by the Boston Red Sox in 2002 upon recommendation of former Red Sox pitcher Luis Tiant, who coached Zink at Savannah College of Art and Design.After joining the organization, former Red Sox starting pitcher and fellow knuckleballer Tim Wakefield also spent time with Zink, primarily during their spring break and the off-season.Zink began his career with the independent Yuma Bullfrogs in 2001.