John Hartson has equalised for Celtic against Celta Vigo.
The Welsh striker held off his man at the edge of the box before finishing powerfully into the corner on the turn.
Celta Vigo must now score twice more to win the tie.
Celta Vigo: Pinto, Caceres, Berizzo, Mendez, Juanfran, Edu, Jose Ignacio, Lopez, Luccin, McCarthy, Jesuli.
Subs: Cavallero, Silvinho, Giovanella, Vagner, Jandro, Coira, Coudet.
Celtic: Douglas, Balde, Laursen, Valgaeren, Agathe, Lennon, Petrov, Sutton, Thompson, Hartson, Larsson.
Subs: Guppy, Gould, McNamara, Lambert, Maloney, Fernandez, Sylla.
Referee: Claus Bo-Larsen (Denmark)