The second leg of the tie, which ended in a 0-0 draw in the first match, also finished goalless after regular time and extra time.
Panathinaikos advanced to the play-off round after defeating their opponent 4-3 on penalties.
Oleh Ocheretko of the Ukrainian side was sent off with a red card in the 82nd minute.
Shakhtar Donetsk head coach Arda Turan was shown a red card in the same minute for protesting the referee.
The matches in the play-off round, where Samsunspor will face Panathinaikos, will be played on August 21 and 28.
News Source: 12punto
