Goodwin averaged 7.9 PPG during his brief stint with the Nets last year and then had a solid summer-league showing with averages of 10.2 points and 2.4 assists in five games.
He also made an impact in the G-League last year while averaging 17 PPG in 34 contests.
Although the 2013 first-round pick hasn't lived up to expectations, the 6'5" guard can still provide valuable depth for an NBA team.
The Trail Blazers don't need help in the starting lineup with Damian Lillard and C.J. McCollum creating one of the best backcourts in the league, but Goodwin could potentially crack the rotation with only Shabazz Napier otherwise having point guard skills.
He will also battle Pat Connaughton and Tim Quarterman for a final spot on the roster.