2008 SGA BOBBLEHEAD YUNIESKY BETANCOURT SEATTLE MARINERS LIMITED EDITION. Apparently, in 2008 the Mariners were desperate for someone to bobblehead, and they chose Betancourt. I would have chosen The Moose or the Ichi-meter lady. His most notable achievement during his four years with the Mariners was that he walked only 3 percent of his at-bats, the worst percentage in MLB. Please take this thing off my hands.