Kyrie Irving in walking boot for ankle injury

Cleveland Cavaliers guard Kyrie Irving has faced injury issues at almost every turn during his NBA career, and he appears to be dealing with another problem in advance of the 2014-15 season.

In Rio for preseason basketball against the Miami Heat, Irving was spotted in a walking boot to support his sprained ankle, which was suffered in practice. Irving is only wearing the boot as a precautionary measure, he told reporters.