消息來源：
https://twitter.com/ChrisBHaynes/status/742489382662213632
Raptors G DeMar DeRozan has officially opted out and is a free agent, league
sources informed @clevelanddotcom. His deadline was June 15.
暴龍隊後衛DeMar DeRozan正式跳出合約
投入今年夏天的自由球員市場
DeRozan跳脫合約的期限是在6月15日
短評或心得: 雖然季後賽打得不太好，但DDR應該還是會滿搶手的吧!