It comes in the midst of developing feelings of trepidation of battle among Ukraine and Russia.
The substitute got in the 72nd moment to make it 2-2 preceding removing his shirt to show the spear image.
Ajax's Sebastien Haller had before scored at the two finishes, evening out for the guests with his eleventh objective in the opposition in the wake of scoring an own objective.
Dusan Tadic opened the scoring for the Dutch heroes with a very much taken finish at the Estadio da Luz in Lisbon.
Yaremchuk's festival saw him uncover the Ukrainian Association of Football's logo under his shirt.
Ajax invite Benfica in the return leg in Amsterdam on 15 March with the tie all square.
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