Art Thiel: Let Sosa Steroid News Be Last Straw for MLB SEATTLE, WA (KPLU) - With the news this week that baseball star Sammy Sosa was among the big names who tested positive for steroids, sports commentator Art Thiel tells KPLU's Kirsten Kendrick it's time for baseball to finally come clean on the issue. © Copyright 2009, KPLU