ESPN.com reports: Diesel will be chugging out West. In one of the most improbable trades in NBA history, the Miami Heat traded Shaquille O’Neal to the Phoenix Suns on Wednesday for Shawn Marion and Marcus Banks, sources close to the situation told ESPN.com. O’Neal had traveled to Phoenix Wednesday morning to take a physical, which he presumably passed. The Miami Herald first reported on its Web site Tuesday night that the Heat informed O’Neal that they were shopping him and that talks with the Suns were serious.